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Best Long Length Drill Bits - Buying Guide

Last Updated: 07/15/2019

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  #1

Bosch CO2148 21/64 In. x 4-5/8 In. Cobalt Drill Bit

Model: CO2148   |    Mpn: CO2148   |    Ean: 0000346333602   |    PartNumber: CO2148   |   Asin: B000AEQQX6

Bosch cobalt drill bits are specially designed for drilling in hard steel. Thick web helix delivers fast material removal combined with increased durability for maximum efficiency and performance. Each bit is manufactured to exacting specifications and features a split point that starts on contact with no walking or skating, eliminating the need for a center punch.

Features

  • Withstands high-temperature applications for extended periods of time (up to 1,100 degreeF)
  • Rigid, thick web design adds stability to bit in tough applications
  • Surface hardened to penetrate tough abrasive materials
  • Available in jobber length, full shank
  • Best used for drilling into light-gauge metal, high-carbon steel, aluminum and ally steel, cast iron, stainless steel and titanium
  • See more on Amazon...

Brand: Bosch   |   Manufacturer: Bosch

Package Dimensions: 0.3 x 2 x 8 inches (0.8 x 5.1 x 20.3 cm)

Amazon Price: $5.89 | as of 07/15/2019(3:12pm pst)
Availibility: Usually ships in 24 hours
List Price: $15.38

Warranty: No

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  #2

DEWALT DW1610 3/8-Inch by 12-Inch Extra Long Black Oxide Drill Bit

Model: DW1610   |    Mpn: DW1610   |    Ean: 0288741161086   |    PartNumber: DW1610   |   Asin: B00004RGYQ

Black oxide coated for greater wear resistance; split point drills on contact and prevents walking. Parabolic flute design improves chip Ejection in metal and wood drilling applications. Helix is 31 degrees which minimizes the over aggressiveness of a true parabolic flute.

Features

  • The product is 3/8x12 has STL drill bit
  • Easy to use
  • The product is manufactured in China
  • 135 degree split point drills on contact and prevents walking
  • Parabolic flute design improves chip ejection in metal and wood drilling applications
  • Black oxide coated for greater wear resistance
  • Helix is 31 degrees which minimizes the over aggressiveness of a true parabolic flute
  • See more on Amazon...

Brand: DEWALT   |   Manufacturer: Dewalt

Item Dimensions: 0.4 x 1.9 x 14.7 inches (1.0 x 4.8 x 37.3 cm)   |   Package Dimensions: 0.51 x 1.73 x 14.76 inches (1.3 x 4.4 x 37.5 cm)

Amazon Price: Too low to display | as of 07/15/2019(3:12pm pst)
Availibility: Usually ships in 24 hours
List Price: $18.64

Warranty: 1 Year Full Warranty

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  #3

DEWALT DW1602-1/8-Inch by 12-Inch Extra Long Black Oxide Drill Bit

Model: DW1602   |    Mpn: DW1602   |    Ean: 7257259951789   |    PartNumber: DW1602   |   Asin: B00004RGYL

Black oxide coated for greater wear resistance; split point drills on contact and prevents walking. Parabolic flute design improves chip ejection in metal and wood drilling applications. Helix is 31 degrees which minimizes the over aggressiveness of a true parabolic flute.

Features

  • The product is 1/8x12 HS STL Drill Bit
  • Easy to use
  • The product is manufactured in China
  • 135 degree split point drills on contact and prevents walking
  • Parabolic flute design improves chip ejection in metal and wood drilling applications
  • Black oxide coated for greater wear resistance
  • Helix is 31 degrees which minimizes the over aggressiveness of a true parabolic flute
  • See more on Amazon...

Brand: DEWALT   |   Manufacturer: Dewalt

Item Dimensions: 0.18 x 1.87 x 14.72 inches (0.5 x 4.7 x 37.4 cm)   |   Package Dimensions: 0.12 x 1.85 x 14.65 inches (0.3 x 4.7 x 37.2 cm)

Amazon Price: $4.55 | as of 07/15/2019(3:12pm pst)
Availibility: Usually ships in 24 hours
List Price: $14.30

Warranty: 1 Year Full Warranty

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  #4

Bosch EX1012 7/16 In. x 12 In. Straight Shank Extension

Model: EX1012   |    Mpn: EX1012   |    Ean: 0000346393002   |    PartNumber: EX1012   |   Asin: B00ELC1Y3A

SDS-plus shank eliminates need for separate drill. Solid bit grip maintains stability of bit and extension in the tool. For use with most common rotary hammers in rotation mode.

Features

  • 12 In. straight extension shank
  • Dimensions 7/16 In. x 12 In.
  • Rugged, high-quality materials to withstand tough concrete applications
  • Maintains bit integrity at impact point
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Brand: Bosch   |   Manufacturer: Bosch

Item Dimensions: 15.75 x 3.75 x 1.03 inches (40.0 x 9.5 x 2.6 cm)   |   Package Dimensions: 0.4 x 3.4 x 15.4 inches (1.0 x 8.6 x 39.1 cm)

Amazon Price: $8.99 | as of 07/15/2019(3:12pm pst)
Availibility: Usually ships in 24 hours
List Price: $12.54

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  #5

DRILLFORCE10-piece 5/16" Round Shank HSS Titanium Coated Twist Drill Bits for Metal ... (5/16)

 PartNumber: 20017-10   |   Asin: B07989LWJW

Specifications:
* Brand new and high quality.
* Material: 4241 High Speed Steel, Titanium Coated.
* Angle Point: 135 Degree.
* Flute Type: Spiral.
* Shank Type: Straight and Round Shank.
* Specification Met: ANSI.
* Indentation Hardness: 60-62 Rockwell.

High Speed Steel:
* High speed steel construction provides ultimate durability, the cutting edge is hardened and honed for sharpness, chatter-free design with staggered cutting teeth ensure the precise countersinking and hole smooth clean.

Twist Design:
* The split point tip and twist design increases cutting speed while easy self centering prevents walking. Say bye to all those chips and particles, with the twist design the drill bit can quickly clears them out, and leaves a clean, smooth hole.

Notice:
* Please keep cool and gentle using, the working life of the twist drill bits can be largely prolonged by proper usage.
* Not For Use On Concrete, Masonry, Stainless Steel.

* Please check the detail information carefully before purchasing.
* Please allow 1-2mm in size measurement chart for variance due to manual measurement.
* Please excuse us from any possible typos and unintentional misinterpretations * Your satisfaction is our utmost concern, please feel free to contact us for any questions and concerns.

Our Services:
* On-time Delivery: Your product will arrive at the scheduled time.
* Our working time: Monday to Friday, 9:00~18:00. For inquires and customer support, please send your email via amazon email system. All emails will be responded to within 24 hours during business days.

Features

  • Titanium Coated: Classic 4241 High Speed Steel construction with Titanium Coating for proven capability and durability.
  • Strength & Hardness: Made with HSS 4241 steel, Rock wall Hardness Level HRC 60-62.
  • Package & Size: 10 Pieces in a plastic bag, Diameter 5/16 inch, Total length 4-1/2 inch, Working length 3-3/16 inch.
  • Professional & DIY Use: For use on metal, wood & plastics, Not For Use On Concrete / Masonry / Stainless Steel. Perfect match for workshop or service vehicles.
  • 135 Tip & Twist Design: Increases cutting speed with self-centering and prevents walking, clears chips and particles faster.
  • See more on Amazon...

Brand: DRILLFORCE   |   Manufacturer: DRILLFORCE

Amazon Price: $15.99 | as of 07/15/2019(3:12pm pst)
Availibility: Usually ships in 24 hours
List Price: $15.99

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  #6

DEWALT DW1606 1/4-Inch by 12-Inch Extra Long Black Oxide Drill Bit

Model: DW1606   |    Mpn: DW1606   |    Ean: 5899405899532   |    PartNumber: DW1606   |   Asin: B00004RGYN

DEWALT DW1606 1/4-Inch by 12-Inch Extra Long Black Oxide Drill Bit

Features

  • The product is 1/4x12 has STL drill bit
  • Easy to use
  • The product is manufactured in China
  • 135 degree split point drills on contact and prevents walking
  • Parabolic flute design improves chip ejection in metal and wood drilling applications
  • Black oxide coated for greater wear resistance
  • Helix is 31 degrees which minimizes the over aggressiveness of a true parabolic flute
  • See more on Amazon...

Brand: DEWALT   |   Manufacturer: Dewalt

Item Dimensions: 0.3 x 1.9 x 14.7 inches (0.8 x 4.8 x 37.3 cm)   |   Package Dimensions: 0.24 x 1.85 x 14.72 inches (0.6 x 4.7 x 37.4 cm)

Amazon Price: $9.26 | as of 07/15/2019(3:12pm pst)
Availibility: Usually ships in 24 hours
List Price: $11.18 | Used Price: $9.84

Warranty: 1 Year Full Warranty

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  #7

Grizzly G9750 Aircraft Extension Drill Length 13-Piece Set, 1/16-Inch, 1/4-Inch by 6-Inch Long

Model: G9750   |    Mpn: G9750   |    Ean: 0690550097508   |    PartNumber: G9750   |   Asin: B0000DD0PS

These longer length high speed steel drill bits can reach into areas that are difficult to access with standard length drill bits. Model G9750 includes 1/16" - 1/4" by 64ths X 6" long. Model G9751 includes 1/16" - 1/2" by 64ths X 12" long. Model G9752 includes 1 - 60 wire gauge sizes X 6" long.

Features

  • High Speed Steel (HSS)
  • Package dimensions: 4.35 x 7.6 x 1
  • Approximate weight: 1.15 lbs
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Brand: Grizzly   |   Manufacturer: Grizzly

Item Dimensions: 1 x 7.6 x 4.35 inches (2.5 x 19.3 x 11.0 cm)   |   Package Dimensions: 0.9 x 3.7 x 4.8 inches (2.3 x 9.4 x 12.2 cm)

Amazon Price: $13.95 | as of 07/15/2019(3:12pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $17.75

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  #8

Forney 20922 Taper Tap Industrial Pro HSS UNF, 7/8-Inch-by-14

Model: 20922   |    Mpn: 20922   |    Ean: 0032277209220   |    PartNumber: 20922   |   Asin: B003XEW9HW

The Forney 20922 Industrial Pro 7/8" x 14 taper tap Unified National Fine (UNF) high speed steel (HSS) taper tap. Includes 4-degree chamfer angle (7-10 pitches chamfered) and 8-10 tooth height. For use on hard materials. Forney Industries is one of America's longest operating family-owned metal working product companies. Founded in 1932, Forney offers more than 5,000 products for the hardware, automotive, farm & ranch and do-it-yourself markets. If you've got metal working questions, we've got answers. Were committed to your success regardless of location size or needs. 7/8-inch(22.23mm)-by-14 taper tap. Claims for warranty must be made within 90 days of the date of purchase. Proof of purchase required. This warranty does not cover any product that has been subject to misuse, neglect, negligence or accident, or that has been used in any way contrary to the purpose intended.

Features

  • Taper Tap Unified National Fine (UNF)
  • High speed steel (HSS) taper tap
  • Includes 4-degree chamfer angle
  • 7-10 pitches chamfered and 8-10 tooth height
  • For use on hard materials
  • See more on Amazon...

Brand: Forney   |   Manufacturer: Forney

Item Dimensions: 0.88 x 0.88 x 4.75 inches (2.2 x 2.2 x 12.1 cm)   |   Package Dimensions: 1.2 x 1.3 x 4.6 inches (3.0 x 3.3 x 11.7 cm)

Amazon Price: $27.30 | as of 07/15/2019(3:12pm pst)
Availibility: Usually ships in 24 hours
List Price: $28.62

Warranty: 90 day warranty against manufacturer defects

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  #9

29 hole 29 sizes Bolt Wire Fractional Drill Bit Gauge, Black

 PartNumber: DGBK460   |   Asin: B06Y1KR3QG

BenPro Tools Drill Gage is made of non-corrosive, non-conductive, high-impact thermoplastic and/or bioplastic. 29 Sizes Drill Gauge Bolt Wire Diameter Size Bit Gauge Heavy duty construction drill gauge comes with clearly marked fractions. Equivalents ranging from 1/16" to 1/2" by 1/64". Gauge the drill bits quickly and easily SAE Standard Drill Bit & Wire Bolt Gauge Size Diameter Index incudes index for , 31/64, 15/32, 29/64, 7/16, 27/64, 13/32, 25/64, 3/8, 23/64, 11/32, 21/64, 5/16, 19/64, 9/32, 17/64, , 15/64, 7/32, 13/64, 3/16, 11/64, 5/32, 9/64, 1/8, 7/64, 3/32, 5/64, and 1/16.

Features

  • 29 Sizes Drill Gauge Bolt Wire Diameter Size Bit Gauge Heavy duty construction drill gauge comes with clearly marked fractions
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Brand: BenPro Tools   |   Manufacturer: Beneficial Products LLC

Amazon Price: $3.99 | as of 07/15/2019(3:12pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $3.99

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  #10

1/4" x 18" Masonry Drill Bit

 Ean: 0864430000425   |    PartNumber: 1418MCT   |   Asin: B074V7Y97M

1/4" x 18" Carbide Tipped Masonry Drill Bit - Easily cuts through concrete, cement, brick, stucco

Features

  • 1/4" x 18" Carbide Tipped Masonry Drill Bit - Easily cuts through concrete, cement, brick, stucco
  • USED BY - Cable Installers, Phone Companies, Security Companies, Electricians, HVAC, Home Owners, DIY
  • See more on Amazon...

Brand: RTJ Tool Company   |   Manufacturer: RTJ Tool Company

Item Dimensions: 0.25 x 0.25 x 17.75 inches (0.6 x 0.6 x 45.1 cm)   |   Package Dimensions: 0.5 x 0.5 x 17.75 inches (1.3 x 1.3 x 45.1 cm)

Amazon Price: $11.99 | as of 07/15/2019(3:12pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $11.99

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  #11

DEWALT DW1608 5/16-Inch by 12-Inch Extra Long Black Oxide Twist Drill Bit

Model: DW1608   |    Mpn: DW1608   |    Ean: 0288741160850   |    PartNumber: DW1608   |   Asin: B00004RGYO

Black oxide coated for greater wear resistance; split point drills on contact and prevents walking. Parabolic flute design improves chip ejection in metal and wood drilling applications. Helix is 31 degrees which minimizes the over aggressiveness of a true parabolic flute.

Features

  • The product is 5/16x12 HS STL Bit
  • Easy to use
  • The product is manufactured in China
  • 135 degree split point drills on contact and prevents walking
  • Parabolic flute design improves chip ejection in metal and wood drilling applications
  • Black oxide coated for greater wear resistance
  • Helix is 31 degrees which minimizes the over aggressiveness of a true parabolic flute
  • One year warranty, One year service contract, 30 day no-risk trial
  • See more on Amazon...

Brand: DEWALT   |   Manufacturer: Dewalt

Item Dimensions: 2.25 x 4 x 15.13 inches (5.7 x 10.2 x 38.4 cm)   |   Package Dimensions: 0.4 x 1.18 x 12.83 inches (1.0 x 3.0 x 32.6 cm)

Amazon Price: $10.47 | as of 07/15/2019(3:12pm pst)
Availibility: Usually ships in 24 hours
List Price: $13.80

Warranty: 1 Year Full Warranty

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  #12

Drill Hog USA 11/16" Drill Bit 11/16" Silver & Deming Bit HI-Molybdenum M7

Model: 1116M7SD   |    Mpn: 1116M7SD   |    Ean: 0799209319784   |    PartNumber: 1116M7SD   |   Asin: B074D42DGC

Drill Hog is proud to release the newest technology in drill bits. These bits are made from Molybdenum which has a melting point of 4753 degrees Fahrenheit! These bits will drill through the toughest steel like truck frames, stainless steel, farm implements, spring steel, grade 8 bolts, and more! Drill Hog includes a lifetime warranty to the original purchaser.

Features

  • 11/16" Diameter 6" Overall Length
  • HI-Molybdenum M7 HSS Steel
  • 135 Degree Split Point Prevents Walking
  • Tri-Flat Shank Cut Down to 1/2
  • Drill Hog USA Lifetime Warranty
  • See more on Amazon...

Brand: Drill Hog   |   Manufacturer: Drill Hog

Package Dimensions: 0.4 x 4 x 9 inches (1.0 x 10.2 x 22.9 cm)

Amazon Price: $19.99 | as of 07/15/2019(3:12pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $19.99

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  #13

Bosch EX1006 7/16 In. x 6 In. Straight Shank Extension

Model: EX1006   |    Mpn: EX1006   |    Ean: 0000346392999   |    PartNumber: EX1006   |   Asin: B0062ICZ7K

SDS-plus shank eliminates need for separate drill. Solid bit grip maintains stability of bit and extension in the tool. For use with most common rotary hammers in rotation mode.

Features

  • 6 In. straight extension shank
  • Dimensions 7/16 In. x 6 In.
  • Rugged, high-quality materials to withstand tough concrete applications
  • Maintains bit integrity at impact point
  • See more on Amazon...

Brand: Bosch   |   Manufacturer: Bosch

Package Dimensions: 0.2 x 3.4 x 9.7 inches (0.5 x 8.6 x 24.6 cm)

Amazon Price: $7.99 | as of 07/15/2019(3:12pm pst)
Availibility: Usually ships in 24 hours
List Price: $7.99

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  #14

Drill America 5/16" x 6" High Speed Steel Aircraft Extension Drill Bit, DWDA/C Series

Model: DWDA/CX65/16   |    Mpn: DWDA/CX65/16   |    Ean: 0887861043342   |    PartNumber: DWDA/CX65/16   |   Asin: B00B1C8A7G

Drill America DWDA/C Series High-Speed Steel drill bit is manufactured to National Aerospace Standard 907. 135 split point is self-centering and reduces thrust. Ideal for drilling in mild steels where extra length for reach is required. They have a black oxide surface treatment that is abrasion resistant, reduces chip welding and improves chip flow.

Features

  • High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance
  • Black oxide treatment adds lubricity and creates small pockets on the surface of the tool that act to hold coolant near the cutting edge
  • Round shanks allow use with a wide variety of tool holding systems
  • When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
  • Manufactured to national aerospace standard 907
  • See more on Amazon...

Brand: Drill America   |   Manufacturer: Drill America

Package Dimensions: 2 x 2 x 12 inches (5.1 x 5.1 x 30.5 cm)

First Available: 2017-10-30

Amazon Price: $10.93 | as of 07/15/2019(3:12pm pst)
Availibility: Usually ships in 24 hours
List Price: $10.93

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  #15

Drill America #21 x 6" Cobalt Aircraft Extension Drill Bit, GLBCO Series

Model: GLBCOX621   |    Mpn: GLBCOX621   |    Ean: 0887861044837   |    PartNumber: GLBCOX621   |   Asin: B00B2QZZMY

Drill America GLBCO Series drill bit is manufactured to National Aerospace Standard 907. Made of heat resistant cobalt, They are especially effective in drilling tough, high tensile strength materials like PH stainless steel, Inconel, and titanium. 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. Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools; performance is similar to uncoated tools. Round shanks allow use with a wide variety of tool holding systems. When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging.

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
  • Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools; performance is similar to uncoated tools
  • Round shanks allow use with a wide variety of tool holding systems
  • When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
  • Manufactured to national aerospace standard 907
  • See more on Amazon...

Brand: Drill America   |   Manufacturer: Drill America

Package Dimensions: 0.4 x 0.6 x 5.8 inches (1.0 x 1.5 x 14.7 cm)

First Available: 2017-10-30

Amazon Price: $5.98 | as of 07/15/2019(3:12pm pst)
Availibility: Usually ships in 24 hours
List Price: $5.98

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  #16

Drill America 21/64" x 12" High Speed Steel Aircraft Extension Drill Bit, DWDA/C Series

Model: DWDA/CX1221/64   |    Mpn: DWDA/CX1221/64   |    Ean: 0887861044516   |    PartNumber: DWDA/CX1221/64   |   Asin: B00B2QXN9G

Drill America DWDA/C Series High-Speed Steel drill bit is manufactured to National Aerospace Standard 907. 135 split point is self-centering and reduces thrust. Ideal for drilling in mild steels where extra length for reach is required. They have a black oxide surface treatment that is abrasion resistant, reduces chip welding and improves chip flow.

Features

  • High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance
  • Black oxide treatment adds lubricity and creates small pockets on the surface of the tool that act to hold coolant near the cutting edge
  • Round shanks allow use with a wide variety of tool holding systems
  • When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
  • Manufactured to national aerospace standard 907
  • See more on Amazon...

Brand: Drill America   |   Manufacturer: Drill America

Package Dimensions: 0.75 x 0.75 x 12.25 inches (1.9 x 1.9 x 31.1 cm)

First Available: 2017-10-30

Amazon Price: $8.47 | as of 07/15/2019(3:12pm pst)
Availibility: Usually ships in 24 hours
List Price: $16.06

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  #17

Vermont American 13266 1/4" X 12" Extra Length Drill Bit

Model: 13266   |    Mpn: 13266   |    Ean: 0045325132661   |    PartNumber: 13266   |   Asin: B00004YWPK

Vermont American 13266 1/4" High Speed Steel Extension Length Drill Bit

Features

  • 12" length for extra-reach and deep drilling applications
  • 135 degree split point reduces walking
  • Precision ground from premium high speed steel
  • Ideal for contractors and serious DIYers
  • Lifetime Replacement Policy
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Brand: Vermont American   |   Manufacturer: Vermont American

Item Dimensions: 0.4 x 1.9 x 15 inches (1.0 x 4.8 x 38.1 cm)   |   Package Dimensions: 0.4 x 1.9 x 15 inches (1.0 x 4.8 x 38.1 cm)

Amazon Price: $8.78 | as of 07/15/2019(3:12pm pst)
Availibility: Usually ships in 24 hours
List Price: $8.82

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  #18

Drill America 25/64" x 12" Cobalt Aircraft Extension Drill Bit, GLBCO Series

Model: GLBCOX1225/64   |    Mpn: GLBCOX1225/64   |    Ean: 0887861046398   |    PartNumber: GLBCOX1225/64   |   Asin: B00B2QY76E

Drill America GLBCO Series drill bit is manufactured to National Aerospace Standard 907. Made of heat resistant cobalt, They are especially effective in drilling tough, high tensile strength materials like PH stainless steel, Inconel, and titanium. 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. Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools; performance is similar to uncoated tools. Round shanks allow use with a wide variety of tool holding systems. When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging.

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
  • Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools; performance is similar to uncoated tools
  • Round shanks allow use with a wide variety of tool holding systems
  • When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
  • Manufactured to national aerospace standard 907
  • See more on Amazon...

Brand: Drill America   |   Manufacturer: Drill America

Package Dimensions: 0.75 x 0.75 x 12.25 inches (1.9 x 1.9 x 31.1 cm)

First Available: 2017-10-30

Amazon Price: $16.88 | as of 07/15/2019(3:12pm pst)
Availibility: Usually ships in 24 hours
List Price: $23.88

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  #19

MAGBIT 911.1116 MAG911 11/16-Inch by 12-Inch Long Boy Drill Bit

Model: 911.1116   |    Mpn: 911.1116   |    Ean: 0722170911046   |    PartNumber: 911.1116   |   Asin: B000RX8G5Q

Features

  • High speed steel
  • 118 degree split point
  • 1/2-Inch shank with 3 flats
  • Specially designed flutes for better chip ejection
  • Designed to give the roofing and framing contractor more holes per bit
  • See more on Amazon...

Brand: MAGBIT   |   Manufacturer: Magnus Industries Inc.

Package Dimensions: 1.1 x 1.1 x 12.05 inches (2.8 x 2.8 x 30.6 cm)

Amazon Price: $54.41 | as of 07/15/2019(3:12pm pst)
Availibility: Usually ships in 24 hours
List Price: $54.47

Warranty: Return defective products to place of purchase for exchange or credit. Warranty does not apply to damage caused by abuse, misuse or alteration.

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  #20

Drill America 15/32" x 12" High Speed Steel Aircraft Extension Drill Bit, DWDA/C Series

Model: DWDA/CX1215/32   |    Mpn: DWDA/CX1215/32   |    Ean: 0887861044608   |    PartNumber: DWDA/CX1215/32   |   Asin: B00B2QW6DU

Drill America DWDA/C Series High-Speed Steel drill bit is manufactured to National Aerospace Standard 907. 135 split point is self-centering and reduces thrust. Ideal for drilling in mild steels where extra length for reach is required. They have a black oxide surface treatment that is abrasion resistant, reduces chip welding and improves chip flow.

Features

  • High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance
  • Black oxide treatment adds lubricity and creates small pockets on the surface of the tool that act to hold coolant near the cutting edge
  • Round shanks allow use with a wide variety of tool holding systems
  • When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
  • Manufactured to national aerospace standard 907
  • See more on Amazon...

Brand: Drill America   |   Manufacturer: Drill America

Package Dimensions: 0.71 x 0.71 x 11.57 inches (1.8 x 1.8 x 29.4 cm)

First Available: 2017-10-30

Amazon Price: $12.93 | as of 07/15/2019(3:12pm pst)
Availibility: Usually ships in 24 hours
List Price: $18.39

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