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Best Masonry Core Drill Bits - Buying Guide

Last Updated: 03/19/2019

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Bestselling Masonry Core Drill Bits on Amazon

  1. AFUNTA 8 pcs Center Drill Bit Set, Self Centering Hinge Tapper Core Hole Puncher Woodworking Tools C...
  2. Toolocity cbadptr_0038 Adapter for Core Bits-5/8-Inch-11 to 3/8-Inch Triangle Shank
  3. Bosch 8 Piece Glass and Tile Bit Set with Storage Case GT3000
  4. 30 Pack 1mm Diamond Drill Bit Jewelry Beach Sea Glass Shells Gemstones Lapidary 30pcs. 1/24 Inch Nec...
  5. Concord Blades CBW02000SP 2 Inch Wet Concrete Diamond Core Drill Bit
  6. Toolocity SCB0138D 1-3/8-Inch Monster Dry/Wet Diamond Granite/Concrete Core Drill Bits/Hole Saws
  7. Dry Core Bit for Brick and Concrete Block with Pilot Bit - 2" Diameter - SDS Plus Arbor - #30/40 Diamond
  8. Bosch HC8545 3-9/16-Inch x 17-Inch x 22-Inch SDS Max 1-Piece Core Cutter
  9. Concord Blades CBW02500SP 2-1/2 Inch Wet Concrete Diamond Core Drill Bit
  10. Concord Blades CBW01500SP 1-1/2 Inch Wet Concrete Diamond Core Drill Bit

  #1

AFUNTA 8 pcs Center Drill Bit Set, Self Centering Hinge Tapper Core Hole Puncher Woodworking Tools Cabinet Door 5/64'' 7/64'' 9/64'' 11/64'' 13/64'' 5mm 1/4''

Model: AF-center_drill_bit   |    Mpn: AF-center_drill_bit   |    PartNumber: AF-center_drill_bit   |   Asin: B07C8GBT4P

Specifications:
Material: Brass + high-speed steel
Type: Core Drill Bit
Color: Silver
Quantity: 8 pieces
Size: 5/64", 7/64", 9/64", 9/64", 11/64", 13/64", 5 mm, 1/4"

Packing List:
8 x Center Drill Bit

Features

  • PRECISE POSITIONING: No displacement, sawdust will be automatically discharged from top of hole on both sides, drill bit will not be blocked.
  • 7 DIFFERENT SIZE: Come with most common hinge screw sizes 5/64, 7/64, 9/64, 11/64, 13/64, 5mm, 1/4.
  • AUTOMATICAL DISCHARGE: Sawdust will be automatically discharged from the top of the holes on both sides, without drill blocked. Never miss the center of the hole again, references from the hinge bevels.
  • EASY TO REPLACE: Different hardness wood, need different centering drill, you just need take the screw apart and replace the drill.
  • EASY TO INSTALL: Unique design and perfect punch effect. Applicable for the installation of the door hinge. Easy to use and install, change bits fast which one-handed load and release.
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Brand: AFUNTA   |   Manufacturer: AFUNTA

Package Dimensions: 0.5 x 4.5 x 5.25 inches (1.3 x 11.4 x 13.3 cm)

Amazon Price: $15.69 | as of 03/19/2019(4:15pm pst)
Availibility: Usually ships in 24 hours
List Price: $15.69

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  #2

Toolocity cbadptr_0038 Adapter for Core Bits-5/8-Inch-11 to 3/8-Inch Triangle Shank

Model: cbadptr_0038   |    Mpn: cbadptr_0038   |    Ean: 0785533463149   |    PartNumber: cbadptr_0038   |   Asin: B00DHJK9JS

Adapter for core bits - 5/8"-11 to 3/8" Triangle Shank. This adapter transforms 5/8-11 thread to 3/8" triangle shank. The adapter can be used with all our tools with 5/8-11 thread including diamond core bits, diamond cup wheels, back holders, etc.

Features

  • Transform 5/8"-11 female arbor to 3/8" triangle male shank
  • Fits all tools with 5/8-11 female thread
  • Usually for diamond core bits and back holders
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Brand: Toolocity   |   Manufacturer: Applied Diamond Tools

Item Dimensions: 2 x 1 x 2 inches (5.1 x 2.5 x 5.1 cm)   |   Package Dimensions: 1.1 x 1.1 x 3.7 inches (2.8 x 2.8 x 9.4 cm)

Amazon Price: $6.45 | as of 03/19/2019(4:15pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $6.45 | Used Price: $8.16

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  #3

Bosch 8 Piece Glass and Tile Bit Set with Storage Case GT3000

Model: GT3000   |    Mpn: GT3000   |    Ean: 7241870763241   |    PartNumber: GT3000   |   Asin: B001GNC8RS

Bosch 8 Piece Glass and Tile Bit Set with Storage Case GT3000

Features

  • PRECISION: Features Bosch's unique product design with a precision tip to help solve any bit wandering or bit walking.
  • QUALITY: This glass and tile set includes a high-quality carbide tip with a reinforced head to reduce stress, prevent bit cracking and the diamond ground cutting edges provide a longer life.
  • VERSATILE: Perfect for common applications such as relief holes for glass cutting, bathroom and shower installs, drilling and fastening mirrors, setting concrete screws in tile and many more.
  • RELIABLE: The three flat shank provides superior grip on large bits 5/16 in. and larger to prevent slippage. The Bosch GT2000 bit set is easy to use while still providing best-in-class speed so you can get the job done faster.
  • INNVOATIVE: Featuring the Bosch branded, innovative geometry allows bits to drill faster. Stay organized with the Brute Tough Storage Case. Included drill bit sizes: 1/8 in., 3/16 in., 1/4 in., 5/16 in., 3/8 in., 1/2 in., 5/8 in., 3/4 in.
  • See more on Amazon...

Brand: Bosch   |   Manufacturer: Bosch

Package Dimensions: 1.2 x 7.6 x 9.9 inches (3.0 x 19.3 x 25.1 cm)

Amazon Price: $23.00 | as of 03/19/2019(4:15pm pst)
Availibility: Usually ships in 24 hours
List Price: $52.96

Warranty: no

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  #4

30 Pack 1mm Diamond Drill Bit Jewelry Beach Sea Glass Shells Gemstones Lapidary 30pcs. 1/24 Inch Necklaces Earrings, Pendants, Bracelets, Beach, Tiles, Marble, Rocks, Ceramic, Porcelain, Case Coated Drills Burrs

Model: 30p1mmCase   |    Mpn: SK92015   |    Ean: 7535001542004   |    PartNumber: SK92015   |   Asin: B00AZMRZ4W

These bits are a very popular type and size used by Jewelry Designers for drilling a nice clean hole in Beach Sea Glass for making Earrings, Pendents and Bracelets. They have multiple layers of industrial diamond particles bonded to the tips which provides for longer drill life and are excellent for drilling completely through any thickness of Beach Sea Glass up to 1/2 thick. These Bits can be used in any high speed Dremel-Type Rotary Tool or Small Precision Drill Press with a 3/32 collet or adjustable collet.

Features

  • Set of 30 pcs. 1mm Diamond Drill Bits - 1/8 shank
  • Fits drills, flex shafts and dremels.
  • Used by Jewelry Designers for drilling clean holes
  • Drills Beach Sea Glass, Sea Shells, Rocks, Marbles, etc.
  • For Making Earrings, Pendents and Bracelets.
  • See more on Amazon...

Brand: DRILAX   |   Manufacturer: Precision Diamond Tools

Package Dimensions: 1 x 2.5 x 5.9 inches (2.5 x 6.4 x 15.0 cm)

Amazon Price: $12.99 | as of 03/19/2019(4:15pm pst)
Availibility: Usually ships in 24 hours
List Price: $13.45

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  #5

Concord Blades CBW02000SP 2 Inch Wet Concrete Diamond Core Drill Bit

Model: CBW02000SP   |    Mpn: CBW0200   |    Ean: 0812763022867   |    PartNumber: CBW0200   |   Asin: B00LQKTUIQ

2 Inch Wet Concrete Diamond Core Drill Bit with 14 Inch Tube Length is used by professionals to do a quick cut into concrete with laser welded segments that contain high concentrations of top quality diamonds. This, combined with a special blend of metal powders, will help to deliver extremely fast cutting and long life in a variety of materials including concrete, cured concrete with heavy reinforcement and hard masonry materials. The newly designed Pro-U segment has double-pointed tips to penetrate quickly and hold a straight drilling path to reduce side drag, and also increases water flow to reduce heat and to remove slurry more efficiently. This concrete core bit is used for general purpose wet drilling on cured concrete with hard aggregate and medium to heavy steel reinforcement, and asphalt overlay on concrete using either a Handheld Core Drill or a Core Drill Rig.

Features

  • 10 mm segment height, 3.5mm Segment Width, 1-1/4" -7mm Arbor
  • Use Wet Only
  • This core bit is used for wet drilling on cured concrete with hard aggregate and medium to heavy steel reinforcement, and asphalt overlay on concrete
  • Does not come with a pilot bit
  • 14 tube length
  • See more on Amazon...

Brand: Concord Blades   |   Manufacturer: Concord Industrial Products

Item Dimensions: 2 x 2 x 14 inches (5.1 x 5.1 x 35.6 cm)   |   Package Dimensions: 2.6 x 2.68 x 17.64 inches (6.6 x 6.8 x 44.8 cm)

Amazon Price: $51.55 | as of 03/19/2019(4:15pm pst)
Availibility: Usually ships in 24 hours
List Price: $53.25

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  #6

Toolocity SCB0138D 1-3/8-Inch Monster Dry/Wet Diamond Granite/Concrete Core Drill Bits/Hole Saws

Model: SCB0138D   |    Mpn: SCB0138D   |    Ean: 0618838420053   |    PartNumber: SCB0138D   |   Asin: B003B3IFDW

1-3/8" Monster Dry/Wet Diamond Granite/ concrete Core Drill Bits/ Hole Saws. DRY Diamond Core Bits - Monster Brand are designed to meet the demands of more and more core drilling applications right on the job sites. These high quality diamond core bits can be used both dry and wet on granite and concrete countertops. They can be used to drill porcelain tile very effectively if edge chipping is not a big concern. Maximum speed for the bits are 4500 RPM. Use water to cool down the bit is highly recommend to extend their lives.

Features

  • Designed for drilling granite and concrete
  • 5/8 thread fits on polishers/ grinders
  • Lasting for dozens of holes depending on materials
  • use wet or dry
  • recomended speed 3000- 6000 RPM
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Brand: Toolocity   |   Manufacturer: Applied Diamond Tools

Item Dimensions: 1.38 x 1.38 x 3.5 inches (3.5 x 3.5 x 8.9 cm)   |   Package Dimensions: 1.6 x 1.6 x 5 inches (4.1 x 4.1 x 12.7 cm)

Amazon Price: $32.02 | as of 03/19/2019(4:15pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $39.50 | Used Price: $31.43

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  #7

Dry Core Bit for Brick and Concrete Block with Pilot Bit - 2" Diameter - SDS Plus Arbor - #30/40 Diamond

 PartNumber: DBP0200A5ADJ69   |   Asin: B077WR36NY

Designed for drilling masonry, concrete block and brick - Pilot Bit Included - Multiple sizes available - 2" Diameter - Thread: SDS Plus - Drilling depth: 9.5" - High diamond concentration and quality guarantee longer coring life

Features

  • #30/40 diamond grit for drilling soft brick, soft masonry, concrete block
  • Diameter: 2 inch - Pilot Bit Included
  • SDS Plus
  • Drilling depth: 9.5
  • High diamond concentration and quality guarantee longer coring life, solid poured concrete Not commended
  • See more on Amazon...

Brand: EDiamondTools   |   Manufacturer: EDiamondTools

Item Dimensions: 2.6 x 2.6 x 11.61 inches (6.6 x 6.6 x 29.5 cm)   |   Package Dimensions: 4.8 x 6.7 x 12.5 inches (12.2 x 17.0 x 31.8 cm)

Amazon Price: $69.99 | as of 03/19/2019(4:15pm pst)
Availibility: Usually ships in 24 hours
List Price: $79.99

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  #8

Bosch HC8545 3-9/16-Inch x 17-Inch x 22-Inch SDS Max 1-Piece Core Cutter

Model: HC8545   |    Mpn: HC8545   |    Ean: 0000346243284   |    PartNumber: HC8545   |   Asin: B0000TZYH0

Includes 3-9/16 in. x 17 in. SDS-max Rotary Hammer Core Bit - HC8545

Core bits with wave design go beyond the range of standard bits and allow smaller hammers to drill larger holes. Bosch SDS-Max rotary hammer core bits are carbide tipped with an integral shank for better power transmission. Maximum core size is 2-5/8-inches deep.

Features

Brand: Bosch   |   Manufacturer: Bosch

Package Dimensions: 3.8 x 3.9 x 22 inches (9.7 x 9.9 x 55.9 cm)

Amazon Price: $153.13 | as of 03/19/2019(4:15pm pst)
Availibility: Usually ships in 24 hours
List Price: $153.13

Warranty: 1 Year

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  #9

Concord Blades CBW02500SP 2-1/2 Inch Wet Concrete Diamond Core Drill Bit

Model: CBW02500SP   |    Mpn: CBW0250   |    Ean: 0812763022881   |    PartNumber: CBW0250   |   Asin: B00LQKTUO0

2-1/2 Inch Wet Concrete Diamond Core Drill Bit with 14 Inch Tube Length is used by professionals to do a quick cut into concrete with laser welded segments that contain high concentrations of top quality diamonds. This, combined with a special blend of metal powders, will help to deliver extremely fast cutting and long life in a variety of materials including concrete, cured concrete with heavy reinforcement and hard masonry materials. The newly designed Pro-U segment has double-pointed tips to penetrate quickly and hold a straight drilling path to reduce side drag, and also increases water flow to reduce heat and to remove slurry more efficiently. This concrete core bit is used for general purpose wet drilling on cured concrete with hard aggregate and medium to heavy steel reinforcement, and asphalt overlay on concrete using either a Handheld Core Drill or a Core Drill Rig.

Features

  • 10 mm segment height, 3.5mm Segment Width, 1-1/4" -7mm Arbor
  • Use Wet Only
  • This core bit is used for wet drilling on cured concrete with hard aggregate and medium to heavy steel reinforcement, and asphalt overlay on concrete
  • Does not come with a pilot bit
  • 14 tube length
  • See more on Amazon...

Brand: Concord Blades   |   Manufacturer: Concord Industrial Products

Item Dimensions: 2.5 x 2.5 x 14 inches (6.4 x 6.4 x 35.6 cm)   |   Package Dimensions: 4.6 x 5.1 x 21.2 inches (11.7 x 13.0 x 53.8 cm)

Amazon Price: $69.95 | as of 03/19/2019(4:15pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $69.95

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  #10

Concord Blades CBW01500SP 1-1/2 Inch Wet Concrete Diamond Core Drill Bit

Model: CBW01500SP   |    Mpn: CBW0150   |    Ean: 0812763022843   |    PartNumber: CBW0150   |   Asin: B00LQKTUDG

1-1/2 Inch Wet Concrete Diamond Core Drill Bit with 14 Inch Tube Length is used by professionals to do a quick cut into concrete with laser welded segments that contain high concentrations of top quality diamonds. This, combined with a special blend of metal powders, will help to deliver extremely fast cutting and long life in a variety of materials including concrete, cured concrete with heavy reinforcement and hard masonry materials. The newly designed Pro-U segment has double-pointed tips to penetrate quickly and hold a straight drilling path to reduce side drag, and also increases water flow to reduce heat and to remove slurry more efficiently. This concrete core bit is used for general purpose wet drilling on cured concrete with hard aggregate and medium to heavy steel reinforcement, and asphalt overlay on concrete using either a Handheld Core Drill or a Core Drill Rig.

Features

  • 10 mm segment height, 3.3mm Segment Width, 5/8"-11mm Arbor
  • Use Wet Only
  • This core bit is used for wet drilling on cured concrete with hard aggregate and medium to heavy steel reinforcement, and asphalt overlay on concrete
  • Does not come with a pilot bit
  • 14 tube length
  • See more on Amazon...

Brand: Concord Blades   |   Manufacturer: Concord Industrial Products

Item Dimensions: 1.5 x 1.5 x 14 inches (3.8 x 3.8 x 35.6 cm)   |   Package Dimensions: 1.3 x 2.1 x 18 inches (3.3 x 5.3 x 45.7 cm)

Amazon Price: $41.81 | as of 03/19/2019(4:15pm pst)
Availibility: Usually ships in 24 hours
List Price: $42.15

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  #11

Ryobi A983102 31-Piece Black Oxide Drilling and Driving Bit Kit for Wood, Metal, Plastic, and Masonry

Model: A983102   |    Mpn: A983102   |    Ean: 7566908017944   |    PartNumber: A983102   |   Asin: B00QSRRRU0

When you purchase a drill, you need bits to go with it. This 31 piece bit set from Ryobi is compact, yet it boasts a great selection that will allow you to perform a wide variety of applications around the home or construction site. It contains a set of paddle bits, ideal for boring large holes through different types of wood. There are also smaller wood boring bits with brad points. These points have three feet that keep your bit from wandering from the drilling subject. Even better is the fact that some of these bits are coated in black oxide, a material that makes them resistant to corrosion and damage from heavy duty jobs. For heavy duty jobs, masonry bits are attached to this kit, letting you drive through brick and stone. They're carbide tipped, serving to make them extra powerful. Keep them all together in the included carrying case. It has mounting brackets and a carrying handle for maximum portability, and its sturdy design can hold up to the wear and tear of everyday living. With all of this value, it's no wonder it's Ryobi.

Features

  • PADDLE BITS: Four paddle bits for boring large holes for construction are included. Sizes are 1/2", 5/8", 3/4", and 1"
  • BRAD POINT BITS are included, giving you a firm grip on the wood, preventing your bit from wandering
  • BLACK OXIDE COATING helps prevent some of these bits from corrosion, letting you work harder for longer with the same bit
  • ORGANIZATION: A plastic bin in which to keep all of your bits is included. It has onboard nail brackets which keep this safely mounted to your wall or pegboard
  • CARBIDE TIPPED MASONRY BITS allow you to bore through brick and stone with ease
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Brand: Ryobi A983102 31-Piece Drilling and Driving Bit Set   |   Manufacturer: Techtronic Industries, Co. Ltd.

Item Dimensions: 11 x 1.25 x 6 inches (27.9 x 3.2 x 15.2 cm)   |   Package Dimensions: 1.3 x 6.1 x 11 inches (3.3 x 15.5 x 27.9 cm)

Amazon Price: $14.99 | as of 03/19/2019(4:15pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $15.37

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  #12

DEWALT DW5572 1/4-Inch Diamond Drill Bit

Model: DW5572   |    Mpn: DW5572   |    Ean: 7466655909052   |    PartNumber: DW5572   |   Asin: B000VR7E60

DEWALT DW5572 1/4-Inch Diamond Drill Bit

Features

  • Diamond Welded Tip for Greater life and Durability
  • Reverse Spiral Thread Delivers Continuous Water Feed for Longer Life and Increased Speed
  • Core Ejection Slot Removes Plug for Repetitious Holes
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Brand: DEWALT   |   Manufacturer: Dewalt

Item Dimensions: 2 x 4 x 6 inches (5.1 x 10.2 x 15.2 cm)   |   Package Dimensions: 1.42 x 2.68 x 4.53 inches (3.6 x 6.8 x 11.5 cm)

Amazon Price: $13.75 | as of 03/19/2019(4:15pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $24.76

Warranty: 30 Day Money Back Guarantee

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  #13

Quartz Clock Movement Kit with 3" Black Spade Hands for Dials up to 1/4"

 Ean: 0795151291567   |    PartNumber: Qtx3/4-B/blksec   |   Asin: B01CDCES0K

This quartz movement features accurate and dependability timekeeper (accurate to +/- one second per day), movement size: 2 7/32" square 5/8" thick and fits in a 3" diameter hole. Movement is suitable for clock repair, restoration or clock making. The shaft diameter measures: 5/16". A pair of hands included 3" as shown. AA battery required. Clock movement: Maximum Dial Thickness 1/4". American Engineering and Quality Made in China.

Features

  • Quartz Clock Movement with Hands, Second Hand, and Built In Wall Hanger
  • Size: 2 7/32 Square
  • Max Dial Thinkness 1/4
  • Total shaft length of 11/16 Without Second Hand
  • One set of hands & second hand included (Minute hand measures 3 from mounting hole to tip)
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Brand: Orange County Clocks   |   Manufacturer: Orange County Clocks

Item Dimensions: 2 x 3.5 x 6 inches (5.1 x 8.9 x 15.2 cm)   |   Package Dimensions: 1 x 3.1 x 5.3 inches (2.5 x 7.9 x 13.5 cm)

Amazon Price: $9.99 | as of 03/19/2019(4:15pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $9.99

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  #14

Alytimes 5 Pcs Diamond Drill Bits, Diamond Tools for Tile/Glass/Marble/Granite/Ceramic/Porcelain/Stone-Included Holesaw Size 3/4", 1", 1-3/16", 1-3/8", 1-5/8"

Model: Alytimes024   |    Mpn: Alytimes024   |    PartNumber: Alytimes024   |   Asin: B01LWA6MXO

This diamond coated core drill bit removes a complete circle from glass, tiles, marble, granite, ceramic or other materials and only needs ,Easy to use, high quality,good performance, long life - Excellent for making clean and accurate hole.Start your hole diagonally, make a round trace and then hold drill straight

Features

  • Foam Insert for All 5 Diamond Drill Bits Sized: 3/4", 1", 1-3/16", 1-3/8", 1-5/8"
  • Shank sizes vary, suitable for all common electric drillers.
  • Do NOT run dry. Diamond Coated Tools will work best if you use water to keep the tools cool.
  • For porcelain, glass, marble, ceramic, rock and granite
  • Package Includes: 1 x 5pcs Diamond Coated Hole Saw Drill Bits
  • See more on Amazon...

Brand: Alytimes   |   Manufacturer: Alytimes024

Item Dimensions: 2.2 x 0.8 x 4.2 inches (5.6 x 2.0 x 10.7 cm)   |   Package Dimensions: 2 x 2.8 x 4.9 inches (5.1 x 7.1 x 12.4 cm)

Amazon Price: $11.56 | as of 03/19/2019(4:15pm pst)
Availibility: Usually ships in 24 hours
List Price: $11.56

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  #15

DAMO Core Bits Adapter / 5/8"-11 to 3/8" Shank / for Electric Hand Drills

 Ean: 6946937102681   |    PartNumber: ADPT58T38S   |   Asin: B006JVO55U

Transform 5/8"-11 female arbor to 3/8" hex shank. Can be used to adapt our diamond core drill bits, diamond drum wheels, hand profilers and back holders to be used with normal electric hand drills which take 3/8" shank.

We DAMO Diamond Tools, LLC holds exclusive distribution to DAMO Trademark products as you can see clearly marked from the picture on the product listing.

Features

  • 5/8"-11 male thread;
  • 3/8 hex shank;
  • Convert 5/8-11 female arbor to 3/8 shank;
  • Used on electric hand drills;
  • Optimal for DAMO core drill bits
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Brand: DAMO   |   Manufacturer: DAMO Diamond Tools LLC.

Package Dimensions: 1.7 x 1.8 x 5 inches (4.3 x 4.6 x 12.7 cm)

Amazon Price: $19.86 | as of 03/19/2019(4:15pm pst)
Availibility: Usually ships in 24 hours
List Price: $19.90

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  #16

Bosch T3926SC 13-Inch Extension Sds-Plus for Speedcore Thin-Wall Core Bits

Model: T3926SC   |    Mpn: T3926SC   |    Ean: 0000346430110   |    PartNumber: T3926SC   |   Asin: B00EMFOPB4

Bosch SDS-plus thin-wall core bits are optimized for drilling with smaller hammers. Core body range is 1-Inch up to 4-3/8-Inch with a usable cutting depth of 3-Inch. Extension plus bit beyond 8-Inch should not exceed 600 RPM.

Features

  • Core bit extension
  • 13-Inch extension, SDS-plus
  • Screw core bit onto shank
  • Works with thin-wall core bits, 1-1/2-Inch or larger
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Brand: Bosch   |   Manufacturer: Bosch

Item Dimensions: 16.75 x 1.6 x 0.86 inches (42.5 x 4.1 x 2.2 cm)   |   Package Dimensions: 0.4 x 1.7 x 16.7 inches (1.0 x 4.3 x 42.4 cm)

Amazon Price: $32.75 | as of 03/19/2019(4:15pm pst)
Availibility: Usually ships in 24 hours
List Price: $33.59

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  #17

Dry Core Bit for Brick and Concrete Block with Pilot Bit - 4" Diameter - 1/2" Shank Arbor - #30/40 Diamond

 Ean: 0727363142900   |    PartNumber: DBP0400A5ADJ14   |   Asin: B01N397RRT

Designed for drilling masonry, concrete block and brick - Pilot Bit Included - Multiple sizes available - 4" Diameter - Thread: 1/2" Shank - Drilling depth: 9.5" - High diamond concentration and quality guarantee longer coring life

Features

  • #30/40 diamond grit for drilling soft brick, soft masonry, concrete block
  • Diameter: 4 inch - Pilot Bit Includedes
  • Thread: 1/2 Shank
  • Drilling depth: 9.5
  • High diamond concentration and quality guarantee longer coring life, solid poured concrete Not commended
  • See more on Amazon...

Brand: EDiamondTools   |   Manufacturer: EDiamondTools

Item Dimensions: 4.13 x 4.13 x 11.61 inches (10.5 x 10.5 x 29.5 cm)   |   Package Dimensions: 5.4 x 5.9 x 12.6 inches (13.7 x 15.0 x 32.0 cm)

Amazon Price: $99.99 | as of 03/19/2019(4:15pm pst)
Availibility: Usually ships in 24 hours
List Price: $109.99

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  #18

DEWALT DWA1208 1/8" Pilot Point Industrial Cobalt Drill Bit

Model: DWA1208   |    Mpn: DWA1208   |    Ean: 0885911410755   |    PartNumber: DWA1208   |   Asin: B015J5HLMK

1/8", Cobalt, Split Point, Drill Bit, Split Point Design Starts On Contact, Cobalt For Optimum Life & Durability In Metal & Wood, Cobalt Bit Optimized For Lifetime Durability In Stainless & Heavy Steel, 4 Times Long Life Versus Black Oxide.

Features

  • Designed for maximum speed and life
  • Pilot point and split tip design
  • No bit walking - more user control
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Brand: DEWALT   |   Manufacturer: Dewalt

Item Dimensions: 5.75 x 0.14 x 1.87 inches (14.6 x 0.4 x 4.7 cm)   |   Package Dimensions: 0.6 x 1.5 x 5.5 inches (1.5 x 3.8 x 14.0 cm)

Amazon Price: $3.08 | as of 03/19/2019(4:15pm pst)
Availibility: Usually ships in 24 hours
List Price: $3.49

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  #19

Malco CBB Replacement Cutter Bits for HC1 or HC2 Model, 6-Pack

Model: CBB   |    Mpn: CBB   |    Ean: 0686046531342   |    PartNumber: CBB   |   Asin: B00JJ6NHBU

Distinctive gold Bits, Bearings and Pivot Pin signify the longest lasting, fastest cutting, easiest adjusting solution for cutting holes in sheet metal. Malco Hole Cutters quickly install into the chuck of any corded or cordless drill as small as 1/4-inch (6.4 mm). Lightweight aluminum frames make these accessories extremely portable for a variety of hole cutting applications in sheet metal including 20-gauge (1.02 mm) galvanized steel. A compact model HC1 Hole Cutter is adjustable for making 2 to 12" (51 to 305 mm) diameter holes. The larger HC2 model cuts 2 to 20" (51 to 508 mm) holes. A combination English/Metric diameter gauge is included on the adjustable pivot slide for both models and both models use the same mill-type Cutter Bit and replacement parts.

Features

  • Longest lasting cutter bit
  • Versatile for a variety of metal work
  • Precision-fit sealed bearings
  • Easy-adjusting pivot pin
  • See more on Amazon...

Brand: Malco   |   Manufacturer: Malco

Item Dimensions: 0.75 x 1.5 x 8.5 inches (1.9 x 3.8 x 21.6 cm)   |   Package Dimensions: 0.4 x 1.5 x 7.6 inches (1.0 x 3.8 x 19.3 cm)

Amazon Price: $52.99 | as of 03/19/2019(4:15pm pst)
Availibility: Usually ships in 24 hours
List Price: $58.65

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  #20

Concord Blades CBW04000SP 4 Inch Wet Concrete Diamond Core Drill Bit

Model: CBW04000SP   |    Mpn: CBW0400   |    Ean: 0812763022911   |    PartNumber: CBW0400   |   Asin: B00LQKTWWU

4 Inch Wet Concrete Diamond Core Drill Bit with 14 Inch Tube Length is used by professionals to do a quick cut into concrete with laser welded segments that contain high concentrations of top quality diamonds. This, combined with a special blend of metal powders, will help to deliver extremely fast cutting and long life in a variety of materials including concrete, cured concrete with heavy reinforcement and hard masonry materials. The newly designed Pro-U segment has double-pointed tips to penetrate quickly and hold a straight drilling path to reduce side drag, and also increases water flow to reduce heat and to remove slurry more efficiently. This concrete core bit is used for general purpose wet drilling on cured concrete with hard aggregate and medium to heavy steel reinforcement, and asphalt overlay on concrete using either a Handheld Core Drill or a Core Drill Rig.

Features

  • 10 mm segment height, 3.5mm Segment Width, 1-1/4" -7mm Arbor
  • Use Wet Only
  • This core bit is used for wet drilling on cured concrete with hard aggregate and medium to heavy steel reinforcement, and asphalt overlay on concrete
  • Does not come with a pilot bit
  • 14 tube length
  • See more on Amazon...

Brand: Concord Blades   |   Manufacturer: Concord Industrial Products

Item Dimensions: 4 x 4 x 14 inches (10.2 x 10.2 x 35.6 cm)   |   Package Dimensions: 4.6 x 4.6 x 17.6 inches (11.7 x 11.7 x 44.7 cm)

Amazon Price: $90.41 | as of 03/19/2019(4:15pm pst)
Availibility: Usually ships in 24 hours
List Price: $90.41

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