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Best Countersinks - Buying Guide

Last Updated: 01/15/2019

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Bestselling Countersinks on Amazon

  1. KEO 53512 Cobalt Steel Single-End Countersink, Uncoated (Bright) Finish, 82 Degree Point Angle, Roun...
  2. Proster Center Drill Mill Cutter 5 Pcs Combined Drill 6PCS HSS 4 Flute Straight End Mill Cutters
  3. Dormer A221N2 Centre Drill, Bright Coating, Cobalt High Speed Steel, 0.0781" Head Diameter, 5/64" Fl...
  4. KEO 53528 Cobalt Steel Single-End Countersink Set, Uncoated (Bright) Finish, 90 Degree Angle, 5/16" ...
  5. KEO 53512 Cobalt Steel Single-End Countersink, TiN Coated, 82 Degree Point Angle, Round Shank, 5/16"...
  6. KEO 53513 Cobalt Steel Single-End Countersink, Uncoated (Bright) Finish, 82 Degree Point Angle, Roun...
  7. 5pcs HSS 60 Degree Combined Lathe Mill Center Drill bit Countersink Bit Set Tool
  8. KEO 53533 Cobalt Steel Single-End Countersink, TiN Coated, 100 Degree Point Angle, Round Shank, 3/8"...
  9. HSS Center Drill Set 60 Degree Combined Countersink #1,2,3,4,5 Machinist
  10. KEO 53511 Cobalt Steel Single-End Countersink, Uncoated (Bright) Finish, 82 Degree Point Angle, Roun...

  #1

KEO 53512 Cobalt Steel Single-End Countersink, Uncoated (Bright) Finish, 82 Degree Point Angle, Round Shank, 5/16" Shank Diameter, 1/2" Body Diameter

Model: 53512   |    Mpn: 53512   |    PartNumber: 53512   |   Asin: B00947BQ08

KEO ZErO flute countersink and deburring tools are simple, all-purpose tools made of Cobalt that provide flawless countersinking and deburring. The chatter-free cutting action requires minimal power. The microsmooth CNC precision ground construction produces clean, smooth cutting without smearing on a variety of materials. The tool especially excels in countersinking or deburring holes in aluminum, plastics and other nonmetallics. Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys. Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications. Round shanks allow use with a wide variety of toolholding systems. When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging. 82 degree angle.

Features

  • Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys
  • Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications
  • Round shanks allow use with a wide variety of toolholding systems
  • When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
  • 82 degree angle
  • See more on Amazon...

Brand: KEO Cutters   |   Manufacturer: Keo

Item Dimensions: 0.5 x 0.5 x 3 inches (1.3 x 1.3 x 7.6 cm)   |   Package Dimensions: 0.6 x 0.7 x 2.4 inches (1.5 x 1.8 x 6.1 cm)

Amazon Price: $16.00 | as of 01/15/2019(4:37pm pst)
Availibility: Usually ships in 24 hours
List Price: $16.01

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  #2

Proster Center Drill Mill Cutter 5 Pcs Combined Drill 6PCS HSS 4 Flute Straight End Mill Cutters

 Ean: 0757347418332   |    PartNumber: MAXTL285-US   |   Asin: B075KHL9ZR

Center drill High quality HSS Drill accurate center holes in material prior to turning, or use as a starter bit for accurate holes Sizes 1, 2, 3, 4 and 5, 60 tip angles. Mill Cutter Product Name : End Mill;Material : HSS Color : Gray 01:1/2"x1/2",Cutting Diameter:1/2", Cutting Depth:1.57", Shank Diameter:1/2" 02:1/4"x1/4",Cutting Diameter:1/4",Cutting Depth:1",Shank Diameter:1/4" 03:3/8"x3/8",Cutting Diameter:3/8",Cutting Depth:/1.7",Shank Diameter:3/8" 04:3/16"x1/4",Cutting Diameter:3/16",Cutting Depth:4/5",Shank Diameter:1/4" 05:5/16"x5/16",Cutting Diameter:5/16",Cutting Depth:1",Shank Diameter:5/16" 06:1/8"x1/4",Cutting Diameter:1/8",Cutting Depth:3/4",Shank Diameter:1/4" Suit for: Hardness of metal for above 30 degrees Package Content: 5 x center drill 6 x End Mill

Features

  • 5 Pcs HSS 60 Centering Drill & Countersink Bit: used as starter holes to prevent a drill bit from walking
  • 6 Pcs HSS 4 Flute End Mill Cutter:Suit for hardness of metal for above 30 degrees
  • Center Drill Bit Sizes: 1, 2, 3, 4 and 5, 60 tip angles;Material : HSS
  • Application:used for producing center holds in components or work pieces with require machining between center
  • Accurate center holes in material prior to turning, or use as a starter bit for accurate holes
  • See more on Amazon...

Brand: Proster   |   Manufacturer: Proster Trading Limited

Package Dimensions: 0.94 x 3.94 x 4.02 inches (2.4 x 10.0 x 10.2 cm)

Amazon Price: $15.95 | as of 01/15/2019(4:37pm pst)
Availibility: Usually ships in 24 hours
List Price: $15.95

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  #3

Dormer A221N2 Centre Drill, Bright Coating, Cobalt High Speed Steel, 0.0781" Head Diameter, 5/64" Flute Length

Model: 0241875   |    Mpn: A221N2   |    Ean: 7320760241875   |    PartNumber: A221N2   |   Asin: B003JY5ZHC

The Dormer A221 series cobalt steel combined drill and countersink has an uncoated (bright) finish and a plain style to create a center hole with a 60-degree countersink that can be used as a center hole for machine centers, and meets United States Cutting Tool Institute (USCTI) standards. The 118-degree conventional point drills a center hole, while the two spiral flutes clear chips away to prevent clogging. Cobalt steel provides extended tool life compared to high-speed steel drill bits, and maintains the tool's toughness and hardness in high drilling temperatures. The uncoated finish has no additional surface treatment or coating. The tool is double-ended to provide two cutting ends. The round shank accommodates most drill chucks.

Combined drill and countersinks are fluted cutting tools that drill a shallow hole with a conical or gradually widened opening, also known as a countersink, into the surface of a workpiece. These tools, also called combined drill countersinks, drill-point countersinks or center drills, are commonly used to create center holes that act as a bearing surface for a machine center. Some types reduce the two-step process of creating a countersunk pilot hole into one.

Dormer Pramet manufactures cutting tools under the following brands: Precision Twist Drill, Dormer, Union Butterfield and Pramet. The company has locations around the world, and provides tools adhering to ANSI, NAS, and DIN standards.

Features

  • Plain-style combined drill and countersink creates a 60-degree countersink, which can be used as a center hole for machine centers
  • 118-degree conventional point drills a center hole while the two spiral flutes clear chips away to prevent clogging
  • Cobalt steel provides extended tool life compared to high-speed steel drill bits when drilling hard materials and has an uncoated (bright) finish
  • Double-ended to provide two cutting ends
  • Meets USCTI standards
  • See more on Amazon...

Brand: Dormer   |   Manufacturer: Precision Dormer

Package Dimensions: 0.5 x 0.5 x 3.4 inches (1.3 x 1.3 x 8.6 cm)

Amazon Price: $10.71 | as of 01/15/2019(4:37pm pst)
Availibility: Usually ships in 1 to 3 months
List Price: $10.74

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  #4

KEO 53528 Cobalt Steel Single-End Countersink Set, Uncoated (Bright) Finish, 90 Degree Angle, 5/16" - 5/8" Head Diameter

Model: 53528   |    Mpn: 53528   |    PartNumber: 53528   |   Asin: B00947CBKW

Flute countersink and deburring tools. Straight shank, CNC precision cam ground, M35 cobalt steel material, chatter-free cutting action. Made in Great Britain. Set includes 90 degree 5/16", 3/8", 1/2", 5/8" head diameter countersink. Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys. Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications. 90 degree angle.

Features

  • Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys
  • Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications
  • 90 degree angle
  • Straight shank, CNC precision cam ground, M35 cobalt steel material, chatter-free cutting action
  • Made in Great Britain
  • See more on Amazon...

Brand: KEO Cutters   |   Manufacturer: Keo

Item Dimensions: 1.2 x 3.4 x 5.4 inches (3.0 x 8.6 x 13.7 cm)   |   Package Dimensions: 1.3 x 3.3 x 5.3 inches (3.3 x 8.4 x 13.5 cm)

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  #5

KEO 53512 Cobalt Steel Single-End Countersink, TiN Coated, 82 Degree Point Angle, Round Shank, 5/16" Shank Diameter, 1/2" Body Diameter

Model: 53512-TiN   |    Mpn: 53512-TiN   |    PartNumber: 53512-TiN   |   Asin: B00948QM7Y

KEO ZErO flute countersink and deburring tools are simple, all-purpose tools made of Cobalt that provide flawless countersinking and deburring. The chatter-free cutting action requires minimal power. The microsmooth CNC precision ground construction produces clean, smooth cutting without smearing on a variety of materials. The tool especially excels in countersinking or deburring holes in aluminum, plastics and other nonmetallics. Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys. Titanium nitride coatings add a hard layer of gold-colored ceramic to the surface that extends tool life and permits faster cutting speeds than uncoated tools. Round shanks allow use with a wide variety of toolholding systems. When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging. 82 degree angle.

Features

  • Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys
  • Titanium nitride coatings add a hard layer of gold-colored ceramic to the surface that extends tool life and permits faster cutting speeds than uncoated tools
  • Round shanks allow use with a wide variety of toolholding systems
  • When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
  • 82 degree angle
  • See more on Amazon...

Brand: KEO Cutters   |   Manufacturer: Keo

Package Dimensions: 0.6 x 0.7 x 2.5 inches (1.5 x 1.8 x 6.4 cm)

Amazon Price: $18.62 | as of 01/15/2019(4:37pm pst)
Availibility: Usually ships in 24 hours
List Price: $18.62

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  #6

KEO 53513 Cobalt Steel Single-End Countersink, Uncoated (Bright) Finish, 82 Degree Point Angle, Round Shank, 3/8" Shank Diameter, 5/8" Body Diameter

Model: 53513   |    Mpn: 53513   |    PartNumber: 53513   |   Asin: B00947BR7A

KEO ZErO flute countersink and deburring tools are simple, all-purpose tools made of Cobalt that provide flawless countersinking and deburring. The chatter-free cutting action requires minimal power. The microsmooth CNC precision ground construction produces clean, smooth cutting without smearing on a variety of materials. The tool especially excels in countersinking or deburring holes in aluminum, plastics and other nonmetallics. Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys. Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications. Round shanks allow use with a wide variety of toolholding systems. When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging. 82 degree angle.

Features

  • Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys
  • Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications
  • Round shanks allow use with a wide variety of toolholding systems
  • When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
  • 82 degree angle
  • See more on Amazon...

Brand: KEO Cutters   |   Manufacturer: Keo

Item Dimensions: 1 x 1 x 3 inches (2.5 x 2.5 x 7.6 cm)   |   Package Dimensions: 0.9 x 1 x 2.3 inches (2.3 x 2.5 x 5.8 cm)

Amazon Price: $23.56 | as of 01/15/2019(4:37pm pst)
Availibility:
List Price: $24.80

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  #7

5pcs HSS 60 Degree Combined Lathe Mill Center Drill bit Countersink Bit Set Tool

 Ean: 0745360527292   |    PartNumber: 55276-US1   |   Asin: B01FE4NLM0

Features:

Material HSS
Color :Silver Tone
High Speed Steel
Standard 60 degree included angle
precision import
double ended

Specification:

This listing is for a set of 5 HSS Center Drills
Each drill has a double end and is ground with a standard 60 degree included angle
The set includes 1 each of the following sizes:
#1 with 3mm body diameter & 1mm drill tip diameter
#2 with 4mm body diameter & 1.5mm drill tip diameter
#3 with 6mm body diameter & 2.5mm drill tip diameter
#4 with 8mm body diameter & 3.15 drill tip diameter
#5 with 12mm body diameter & 5mm drill tip diameter

Usage:

Center and spotting drills are traditionally used to make a conical hole for a lathe center in order to make a starting point for a standard twist drill, designed to prevent the twist drill from walking
Used for producing center holds in components or work pieces with require machining between centers

Package Included:

1x a set of 5 HSS Center Drills

Features

  • Material:HSS
  • High Speed Steel
  • Standard 60 degree included angle
  • double ended
  • A set of 5 HSS Center Drills
  • See more on Amazon...

Brand: F.L.S   |   Manufacturer: FLS

Package Dimensions: 0.1 x 2.2 x 2.5 inches (0.3 x 5.6 x 6.4 cm)

Amazon Price: $6.59 | as of 01/15/2019(4:37pm pst)
Availibility: Usually ships in 24 hours
List Price: $6.99

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  #8

KEO 53533 Cobalt Steel Single-End Countersink, TiN Coated, 100 Degree Point Angle, Round Shank, 3/8" Shank Diameter, 5/8" Body Diameter

Model: 53533-TiN   |    Mpn: 53533-TiN   |    PartNumber: 53533-TiN   |   Asin: B00948QV5W

KEO ZErO flute countersink and deburring tools are simple, all-purpose tools made of Cobalt that provide flawless countersinking and deburring. The chatter-free cutting action requires minimal power. The microsmooth CNC precision ground construction produces clean, smooth cutting without smearing on a variety of materials. The tool especially excels in countersinking or deburring holes in aluminum, plastics and other nonmetallics. Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys. Titanium nitride coatings add a hard layer of gold-colored ceramic to the surface that extends tool life and permits faster cutting speeds than uncoated tools. Round shanks allow use with a wide variety of toolholding systems. When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging. 100 degree angle.

Features

  • Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys
  • Titanium nitride coatings add a hard layer of gold-colored ceramic to the surface that extends tool life and permits faster cutting speeds than uncoated tools
  • Round shanks allow use with a wide variety of toolholding systems
  • When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
  • 100 degree angle
  • See more on Amazon...

Brand: KEO Cutters   |   Manufacturer: Keo

Package Dimensions: 0.9 x 1 x 2.3 inches (2.3 x 2.5 x 5.8 cm)

First Available: 2017-11-25

Amazon Price: $27.75 | as of 01/15/2019(4:37pm pst)
Availibility: Usually ships in 1 to 2 months
List Price: $27.75

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  #9

HSS Center Drill Set 60 Degree Combined Countersink #1,2,3,4,5 Machinist

 Ean: 0644607331879   |   Asin: B014LQM0VK


-5 PC Center drill set
-Straight flute
-Size: #1 - 5
-#1 center drill with 1/8" body diameter & 3/64" drill tip diameter & 1-1/4" overall length
-#2 center drill with 3/16" body diameter & 5/64" drill tip diameter & 1-7/8" overall length
-#3 center drill with 1/4" body diameter & 7/64" drill tip diameter & 2" overall length
-#4 center drill with 5/16" body diameter & 1/8" drill tip diameter & 2-1/8" overall length
-#5 center drill with 7/16" body diameter & 3/16" drill tip diameter & 2-3/4" overall length
-Made of premium M2 High Speed Steel and ground finished, set comes complete with plastic case or wooden case holding all 5 center drills
-Plain style 60 angle used for producing center holes in workpieces which require precision drilling or machining between centers. Also used as starter holes to prevent a drill bit from "walking"

Features

  • 5 PC Center drill set
  • Straight flute
  • Size: #1 - 5
  • Shipping weight: 4 ounce
  • Quantity: 1 set (5 pc per order)
  • See more on Amazon...

Brand: Generic   |   Manufacturer: Generic

Amazon Price: $12.99 | as of 01/15/2019(4:37pm pst)
Availibility: Usually ships in 24 hours
List Price: $12.99

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  #10

KEO 53511 Cobalt Steel Single-End Countersink, Uncoated (Bright) Finish, 82 Degree Point Angle, Round Shank, 1/4" Shank Diameter, 3/8" Body Diameter

Model: 53511   |    Mpn: 53511   |    PartNumber: 53511   |   Asin: B00947BOYQ

KEO ZErO flute countersink and deburring tools are simple, all-purpose tools made of Cobalt that provide flawless countersinking and deburring. The chatter-free cutting action requires minimal power. The microsmooth CNC precision ground construction produces clean, smooth cutting without smearing on a variety of materials. The tool especially excels in countersinking or deburring holes in aluminum, plastics and other nonmetallics. Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys. Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications. Round shanks allow use with a wide variety of toolholding systems. When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging. 82 degree angle.

Features

  • Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys
  • Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications
  • Round shanks allow use with a wide variety of toolholding systems
  • When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
  • 82 degree angle
  • See more on Amazon...

Brand: KEO Cutters   |   Manufacturer: Keo

Item Dimensions: 0.4 x 0.4 x 1.8 inches (1.0 x 1.0 x 4.6 cm)   |   Package Dimensions: 0.4 x 0.5 x 2.2 inches (1.0 x 1.3 x 5.6 cm)

Amazon Price: $15.00 | as of 01/15/2019(4:37pm pst)
Availibility: Usually ships in 24 hours
List Price: $15.29

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  #11

Atoplee Industrial Tools 5 Pc Premium HSS 60 Center Drill Combined Drill & Countersink Lathe Mill Tool Set

 PartNumber: FBA_ATO-5024   |   Asin: B00M3TEF4I

Features:

100% quality and Brand new.
This listing is for a set of 5 HSS Center Drills.
Plain style 60 angle used for producing center holes in workpieces which require precision drilling or machining between centers.
It also used as starter holes to prevent a drill bit from "walking".
Center and spotting drills are traditionally used to make a conical hole for a lathe center in order to make a starting point for a standard twist drill, designed to prevent the twist drill from walking.
Used for producing center holds in components or work pieces with require machining between centers.

Package Included:

A set of 5 HSS Center Drills

Features

  • Color: silver
  • Material: HSS
  • Tip angles: 60
  • It includes sizes: 1/8 3/16 1/4 5/16 3/8 in tip diameter
  • Quantity: 5pcs HSS Center Drills
  • See more on Amazon...

Brand: ATOPLEE   |   Manufacturer: ATOPLEE

Package Dimensions: 0.4 x 5.9 x 6.9 inches (1.0 x 15.0 x 17.5 cm)

Amazon Price: $7.40 | as of 01/15/2019(4:37pm pst)
Availibility: Usually ships in 24 hours
List Price: $7.40

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  #12

Drill America DEWCHAT Series High-Speed Steel Chatterless Countersink, 6 Flute, 1/4" Shank Diameter, 5/16" Size, 100 Degrees Angle (Pack of 1)

Model: DEWCHAT5/16-100   |    Mpn: DEWCHAT5/16-100   |    Ean: 0887861132022   |    PartNumber: DEWCHAT5/16-100   |   Asin: B00FXBSXRS

Drill America DEWCHAT Series 6 flute chatterless countersink is designed to provide more metal removal then the 1,2,3, and 4 flute countersinks. They are also more effective on harder materials. High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance. Round shanks allow use with a wide variety of tool holding systems. Through-hole flute style has a single flute that passes through the cutting head to reduce vibration and chip clogging; also called "zero flute".

Features

  • High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance
  • 6 flute chatterless countersink
  • Round shanks allow use with a wide variety of toolholding systems
  • Through-hole flute style has a single flute that passes through the cutting head to reduce vibration and chip clogging; also called zero flute
  • Designed to provide more metal removal then the 1,2,3, and 4 flute countersink
  • See more on Amazon...

Brand: Drill America   |   Manufacturer: Drill America

Package Dimensions: 0.4 x 0.5 x 2.9 inches (1.0 x 1.3 x 7.4 cm)

Amazon Price: $13.19 | as of 01/15/2019(4:37pm pst)
Availibility: Usually ships in 1 to 2 days
List Price: $14.95

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  #13

KEO 53510 Cobalt Steel Single-End Countersink, Uncoated (Bright) Finish, 82 Degree Point Angle, Round Shank, 1/4" Shank Diameter, 5/16" Body Diameter

Model: 53510   |    Mpn: 53510   |    Ean: 7241871119627   |    PartNumber: 53510   |   Asin: B00947BNFG

KEO ZErO flute countersink and deburring tools are simple, all-purpose tools made of Cobalt that provide flawless countersinking and deburring. The chatter-free cutting action requires minimal power. The microsmooth CNC precision ground construction produces clean, smooth cutting without smearing on a variety of materials. The tool especially excels in countersinking or deburring holes in aluminum, plastics and other nonmetallics. Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys. Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications. Round shanks allow use with a wide variety of toolholding systems. When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging. 82 degree angle.

Features

  • Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys
  • Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications
  • Round shanks allow use with a wide variety of toolholding systems
  • When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
  • 82 degree angle
  • See more on Amazon...

Brand: KEO Cutters   |   Manufacturer: Keo

Item Dimensions: 0.5 x 0.5 x 3 inches (1.3 x 1.3 x 7.6 cm)   |   Package Dimensions: 0.5 x 0.5 x 2 inches (1.3 x 1.3 x 5.1 cm)

Amazon Price: $12.79 | as of 01/15/2019(4:37pm pst)
Availibility: Usually ships in 24 hours
List Price: $12.79

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  #14

KEO 53518 Cobalt Steel Single-End Countersink Set, Uncoated (Bright) Finish, 82 Degree Point Angle, 5/16" - 5/8" Head Diameter

Model: 53518   |    Mpn: 53518   |    PartNumber: 53518   |   Asin: B00947BWDO

Straight shank, CNC precision cam ground, M35 cobalt, chatter-free cutting action. Made in Great Britain. Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys. Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications. 82 degree angle.

Features

  • Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys
  • Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications
  • 82 degree angle
  • Straight shank, CNC precision cam ground, M35 cobalt, chatter-free cutting action
  • Made in Great Britain
  • See more on Amazon...

Brand: KEO Cutters   |   Manufacturer: Keo

Package Dimensions: 1.2 x 3.5 x 5.4 inches (3.0 x 8.9 x 13.7 cm)

Amazon Price: $72.51 | as of 01/15/2019(4:37pm pst)
Availibility: Usually ships in 24 hours
List Price: $72.51

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  #15

HHIP 5000-2078 60 Degree High Speed Steel Combined Drill and Countersink, 5/64" Drill Diameter, 3/16" Body Diameter, 1-7/8" OAL, 2

Model: 5000-2078   |    Mpn: 5000-2078   |    Ean: 0769053052298   |    PartNumber: 5000-2078   |   Asin: B00DVDU57Q

HHIP #2 (5/64" drill diameter) 60 degree combined drill and countersink is made of high speed steel and ground from solid. Plain style. Used for centering work ends, where the work piece is to be revolved on machine centers. 60 degree countersink angle fits all standard centers. Body diameter is 3/16".

Features

  • Made of high speed steel and ground from solid
  • Plain style
  • Used for centering work ends, where the work piece is to be revolved on machine centers
  • 60 degree countersink angle fits all standard centers
  • Ground from solid
  • See more on Amazon...

Brand: HHIP   |   Manufacturer: ABS Import Tools, Inc.

Item Dimensions: 6 x 6 x 6 inches (15.2 x 15.2 x 15.2 cm)   |   Package Dimensions: 1.19 x 1.19 x 2.88 inches (3.0 x 3.0 x 7.3 cm)

Amazon Price: $2.28 | as of 01/15/2019(4:37pm pst)
Availibility:
List Price: $1.75

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  #16

Drill America DEWCSK Series High-Speed Steel Center Reamer Countersink, 3 Flute, 1/4" Shank Diameter, 3/8" Size, 60 Degrees Angle (Pack of 1)

Model: DEWCSK3/8-60   |    Mpn: DEWCSK3/8-60   |    Ean: 0887861131360   |    PartNumber: DEWCSK3/8-60   |   Asin: B00FXBW7LQ

Drill America DEWCSK Series 3 flute countersink is designed for countersinking holes for centers or for enlarge existing holes. High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance. Round shanks allow use with a wide variety of toolholding systems. Through-hole flute style has a single flute that passes through the cutting head to reduce vibration and chip clogging; also called "zero flute".

Features

  • High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance
  • 3 flute center reamer countersink
  • Round shanks allow use with a wide variety of toolholding systems
  • Through-hole flute style has a single flute that passes through the cutting head to reduce vibration and chip clogging; also called zero flute
  • Designed for countersinking holes for centers or for enlarge existing holes
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Brand: Drill America   |   Manufacturer: Drill America

Package Dimensions: 0.3 x 2 x 4 inches (0.8 x 5.1 x 10.2 cm)

Amazon Price: $9.39 | as of 01/15/2019(4:37pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $9.39

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  #17

KEO 53530 Cobalt Steel Single-End Countersink, TiN Coated, 100 Degree Point Angle, Round Shank, 1/4" Shank Diameter, 5/16" Body Diameter

Model: 53530-TiN   |    Mpn: 53530-TiN   |    PartNumber: 53530-TiN   |   Asin: B00948QTWM

KEO ZErO flute countersink and deburring tools are simple, all-purpose tools made of Cobalt that provide flawless countersinking and deburring. The chatter-free cutting action requires minimal power. The microsmooth CNC precision ground construction produces clean, smooth cutting without smearing on a variety of materials. The tool especially excels in countersinking or deburring holes in aluminum, plastics and other nonmetallics. Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys. Titanium nitride coatings add a hard layer of gold-colored ceramic to the surface that extends tool life and permits faster cutting speeds than uncoated tools. Round shanks allow use with a wide variety of toolholding systems. When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging. 100 degree angle.

Features

  • Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys
  • Titanium nitride coatings add a hard layer of gold-colored ceramic to the surface that extends tool life and permits faster cutting speeds than uncoated tools
  • Round shanks allow use with a wide variety of toolholding systems
  • When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
  • 100 degree angle
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Brand: KEO Cutters   |   Manufacturer: Keo

Package Dimensions: 0.4 x 0.5 x 2.1 inches (1.0 x 1.3 x 5.3 cm)

First Available: 2017-05-15

Amazon Price: $16.11 | as of 01/15/2019(4:37pm pst)
Availibility: Usually ships in 24 hours
List Price: $16.11

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  #18

KEO 55816 Solid Carbide Single-End Countersink, Uncoated (Bright) Finish, 6 Flutes, 100 Degree Point Angle, Round Shank, 1/4" Shank Diameter, 3/8" Body Diameter

Model: 55816   |    Mpn: 55816   |    PartNumber: 55816   |   Asin: B00947XUP2

KEO 6-flute line of countersinks are companions to our single flute countersinks and our 3- and 4-flute center reamer line. As a rule, the more edges per revolution, the greater amount of material that may be removed. We have designed the 6-flute tools with staggered cutting edges. Solid carbide tools offer long tool life and faster cutting speeds than other substrates, but are more brittle and must be used with rigid toolholding systems. Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications. Round shanks allow use with a wide variety of toolholding systems. When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging. 100 degree angle.

Features

  • Solid carbide tools offer long tool life and faster cutting speeds than other substrates, but are more brittle and must be used with rigid toolholding systems
  • Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications
  • Round shanks allow use with a wide variety of toolholding systems
  • When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
  • 100 degree angle
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Brand: KEO Cutters   |   Manufacturer: Keo

Package Dimensions: 0.5 x 0.7 x 2.5 inches (1.3 x 1.8 x 6.4 cm)

Amazon Price: $37.41 | as of 01/15/2019(4:37pm pst)
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  #19

Task Tools T60034 High Speed Steel Countersink, 82-Degree Chamfer Angle, 3/4-Inch Diameter

Model: T60034   |    Mpn: T60034   |    Ean: 0062466600347   |    PartNumber: T60034   |   Asin: B00A1B78TE

High speed steel construction means fast and smooth countersinking holes and chamfering edges with this countersink bit from Task Tools. with quick and precise action, the bit blazes through a variety of materials, including steel, iron, non-ferrous metals , wood and plastics. A 5-flute design ensures silky-smooth, chatter-free cuts and longer tool life. Chamfer angle: 82 Degrees. Diameter: 3/4-Inch.

Features

  • High speed steel countersink for use in steel, iron and more
  • HSS construction for faster cutting and longer life
  • 5-flute design for smooth, chatter-free cuts
  • Chamfer angle: 82 Degrees; Diameter: 3/4-Inch
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Brand: Task Tools   |   Manufacturer: LCM Team - Task Tools

Item Dimensions: 0.75 x 2.5 x 4.13 inches (1.9 x 6.4 x 10.5 cm)   |   Package Dimensions: 1 x 2 x 5 inches (2.5 x 5.1 x 12.7 cm)

Amazon Price: $19.59 | as of 01/15/2019(4:37pm pst)
Availibility: Usually ships in 24 hours
List Price: $19.60

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  #20

HHIP 2001-0375 3/8 Inch Single Flute 82 Degree HSS Countersink

Model: 2001-0375   |    Mpn: 2001-0375   |    Ean: 0769053005034   |    PartNumber: 2001-0375   |   Asin: B00N4087V2

For portable and machine work when operated at comparatively high speeds Single flutes will countersink holes much smaller than multi-flute tools.

Features

  • Diameter Body 3/8"; End 1/32"
  • Diameter of Shank 1/4; Length Approx. 2
  • For portable and machine work when operated at comparatively high speeds
  • 82 degrees Single flutes will countersink holes much smaller than multi-flute tools; High speed steel or Cobalt
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Brand: HHIP   |   Manufacturer: HHIP

Item Dimensions: 6 x 6 x 6 inches (15.2 x 15.2 x 15.2 cm)   |   Package Dimensions: 0.51 x 0.51 x 2.09 inches (1.3 x 1.3 x 5.3 cm)

Amazon Price: $7.65 | as of 01/15/2019(4:37pm pst)
Availibility: Usually ships in 24 hours
List Price: $7.65

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