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Best Masonry Core Drill Bits - Buying Guide

Last Updated: 11/13/2018

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Bestselling Masonry Core Drill Bits on Amazon

  1. Toolocity cbadptr_0038 Adapter for Core Bits-5/8-Inch-11 to 3/8-Inch Triangle Shank
  2. AFUNTA 8 pcs Center Drill Bit Set, Self Centering Hinge Tapper Core Hole Puncher Woodworking Tools C...
  3. 30 Pack 1mm Diamond Drill Bit Jewelry Beach Sea Glass Shells Gemstones Lapidary 30pcs. 1/24 Inch Nec...
  4. 12PCS Diamond Drill Bits, Dr.meter Glass Tile Hole Saw Bits Set, Hollow Core Drill Bits, Extractor R...
  5. DAMO 1-1/2 inch Dry Wet Diamond Core Drill Bit for Concrete Granite Marble Hole Saw
  6. DEWALT DWA1204 1/16" Pilot Point Industrial Cobalt Drill Bit
  7. DEWALT DW5572 1/4-Inch Diamond Drill Bit
  8. Dry Drill Core Bits for Brick, Concrete Block, Masonry - 1-1/2" Diameter 5/8"-11 Threaded #30/40 Dia...
  9. Malco CBB Replacement Cutter Bits for HC1 or HC2 Model, 6-Pack
  10. Ryobi A983102 31-Piece Black Oxide Drilling and Driving Bit Kit for Wood, Metal, Plastic, and Masonry

  #1

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 11/13/2018(10:36pm pst)
Availibility: Usually ships in 24 hours
List Price: $11.69 | Used Price: $9.28

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  #2

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: $13.99 | as of 11/13/2018(10:36pm pst)
Availibility: Usually ships in 24 hours
List Price: $13.99

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  #3

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: 1.1 x 3.5 x 6.7 inches (2.8 x 8.9 x 17.0 cm)

Amazon Price: $13.45 | as of 11/13/2018(10:36pm pst)
Availibility: Usually ships in 24 hours
List Price: $13.45

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  #4

12PCS Diamond Drill Bits, Dr.meter Glass Tile Hole Saw Bits Set, Hollow Core Drill Bits, Extractor Remover Hole Saws for Glass, Ceramics, Porcelain, Ceramic Tile

Model: DB-01   |    Mpn: DB-01   |    Ean: 6971420014875   |    PartNumber: DB-01   |   Asin: B077K31QT2

A Must-have Hole Saw Kit for Glass Processing, Interior Decoration, or DIY Projects Alike! This 12 pieces drill bit set bores circles in ceramic, glass, granite, tile, slate and more in seconds! With sizes ranging from 4mm-50mm in diameter, you'll have a bit for all of your needs. Ingenious Design Makes Drilling a Breeze Each drill bit comes with a shank that holds the bit in place without slipping. You'll be able to drill clean holes effortlessly! Two side holes on the bits allow for easy slug removal to increase drilling accuracy and efficiency. Obnoxious debris will be removed automatically so that the bits last as long as possible. Unbeatable Durability At , we want to give you the best-- that's why these bits are crafted from high-quality steel! The premium steel is double-tempered for increased hardness. They can cut through a wide variety of materials with little to no resistance! Diamond dust adds even more strength. The Diamond Drill Bits will be as good as new, even after years of repeated use. Specification -Material: Steel+ Diamond Dust -Color: Silver -Special Feature: Always use water for lubrication Notes: 1.These bits are not suitable for drilling concrete or materials that are thicker than 0.5 inch. 2.To prolong the life of the bits, lower drilling speed and wet the surface with water for added lubrication. 3. If you smell burning, back off! Either your speed is too high or the pressure you're applying is too much. You're drill bit should never be hot to the touch, not even warm. -Slowest speed -Always use lubrication (water) -Minimum pressure Package Content 12* Drill Bit/ Hole Saw

Features

  • Superior Diamond Dust Hole Saw Bits The sharp cutting edge is make of high quality natural diamond sand and solidified by special enhanced electroplating on the surface, ensure a perfect, smooth hole will be removed easily from different high hardness materials.
  • Excellent Design Anti-slick shank prevents slipping and holds the bit securely in place. 3 special drain holes on the top/ sidewall of bits and 2 chip removal gaps on the bottom, accelerating water circulation to cool down the drill bits faster, decreasing friction while working, stretching the longevity of bits.
  • Widely Used Each hole saw kit includes 12 different drill bit sizes ranging from 4-50mm in diameter. Fit for glass, tile bottles, blocks jars, fiber glass porcelain tile ceramic, slate marble, granite light stone and more(especially for glass and tile).
  • User Friendly Perfect for amateurs and professionals alike! Drill diagonally to score your hole, and then hold the drill at a 90 degree angle to bore through the material.
  • Working Theory High hardness materials such as glass, tile, marble, granite, etc is easily broken when cutting. To drill out a perfect hole from them must use higher hardness material like our particular designed diamond dust hole saw to grind the surface into fine particles, also called abrasion.
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Brand: Dr.meter   |   Manufacturer: Dr.meter

Item Dimensions: 0.8 x 3.1 x 3.9 inches (2.0 x 7.9 x 9.9 cm)   |   Package Dimensions: 2.2 x 3 x 4.1 inches (5.6 x 7.6 x 10.4 cm)

Amazon Price: $10.99 | as of 11/13/2018(10:36pm pst)
Availibility: Usually ships in 24 hours
List Price: $19.99

Warranty: 30 Day Money Gurantee

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  #5

DAMO 1-1/2 inch Dry Wet Diamond Core Drill Bit for Concrete Granite Marble Hole Saw

 Ean: 6946937103374   |    PartNumber: TVBDCB112   |   Asin: B005IEIUSC

Although DAMO Dry / Wet Core Bits are designed for use on the job site without using water,wet cutting is recommended whenever possible. They fit on high-speed angle grinders with a 5/8" -11 spindle. Adopting the Vacuum Brazed Tech., they provide the best cutting performance and can drill through the toughest 1-1/4" granite or engineered stone countertop. They can be used to drill the faucet-mounting holes in countertops and vanities. They can also be adapted for use in construction trades wherever holes are needed for water, gas and electrical piping, especially when natural stone, concrete or ceramic tile is already installed. We recommend a template be used when drilling free-hand and a scrap piece of stone be clamped under the stone to prevent excessive chipping on the backside of the stone. Available in 1/4",3/8",1/2",5/8",3/4",7/8",1", 1-1/4", 1-3/8",1-1/2",1-3/4",2",2-1/2" and 3" sizes.

You may buy seperately our core bits adapter to use with the 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

  • Diameter 1-1/2";
  • 5/8-11 thread fits on most popular high-speed grinders;
  • Use on the job site without using water;
  • Aggressive cutting on granite and engineered stone;
  • Max. drilling depth 2, Max. speed 11,000 RPM.
  • See more on Amazon...

Brand: DAMO   |   Manufacturer: DAMO Diamond Tools

Item Dimensions: 3 x 1.5 x 1.5 inches (7.6 x 3.8 x 3.8 cm)   |   Package Dimensions: 1.7 x 1.8 x 4.6 inches (4.3 x 4.6 x 11.7 cm)

Amazon Price: $41.80 | as of 11/13/2018(10:36pm pst)
Availibility: Usually ships in 24 hours
List Price: $41.80

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  #6

DEWALT DWA1204 1/16" Pilot Point Industrial Cobalt Drill Bit

Model: DWA1204   |    Mpn: DWA1204   |    Ean: 0885911411127   |    PartNumber: DWA1204   |   Asin: B015J5HNC8

The DEWALT DWA1204 1/16" Pilot Point Industrial Cobalt Drill Bit is designed for maximum speed and life in stainless steel and other hard metals. This bit features a pilot point and split tip design that starts on contact and eliminates bit walking along for more control. Commonly used for drilling into stainless steel, drilling into angle iron, I-Beams, and other similar metals

Features

  • Designed for maximum speed and life
  • Pilot point and split tip design
  • No bit walking - more user control
  • Intended to be used on hard metals
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Brand: DEWALT   |   Manufacturer: Dewalt

Item Dimensions: 5.75 x 0.08 x 1.87 inches (14.6 x 0.2 x 4.7 cm)   |   Package Dimensions: 0.2 x 2 x 5.5 inches (0.5 x 5.1 x 14.0 cm)

Amazon Price: $2.38 | as of 11/13/2018(10:36pm pst)
Availibility: Usually ships in 24 hours
List Price: $2.49

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  #7

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 11/13/2018(10:36pm pst)
Availibility: Usually ships in 24 hours
List Price: $24.76

Warranty: 30 Day Money Back Guarantee

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  #8

Dry Drill Core Bits for Brick, Concrete Block, Masonry - 1-1/2" Diameter 5/8"-11 Threaded #30/40 Diamond Grit

 Ean: 0727363140043   |    PartNumber: DBP0112A5   |   Asin: B017JO7Q56

#30/40 diamond grit, premium quality, designed for drilling masonry, concrete block and soft brick - Diameter: 1-1/2 inches - Thread: 5/8"-11 threaded - 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: 1-1/2 inches
  • Thread: 5/8-11 threaded
  • Drilling depth: 9.5
  • High diamond concentration and quality guarantee longer coring life, solid poured concrete Not commended
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Brand: EDiamondTools   |   Manufacturer: EDiamondTools

Item Dimensions: 1.61 x 1.61 x 19.49 inches (4.1 x 4.1 x 49.5 cm)   |   

Amazon Price: $38.99 | as of 11/13/2018(10:36pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $38.99

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  #9

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
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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 11/13/2018(10:36pm pst)
Availibility: Usually ships in 24 hours
List Price: $58.65

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  #10

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: $9.85 | as of 11/13/2018(10:36pm pst)
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  #11

BQLZR 4mm Diamond Coated Hole Saw Core Drill Bits Glass Tile Marble Granite Pack Of 10

Model: BQLZRN12140   |    Mpn: F6C2   |    Ean: 0790295810780   |    PartNumber: F6C2   |   Asin: B00RMBKVLI

Note: The color of the item may vary slightly due to photography and your own computer
Hole Saw for Glass
It can cut tidy, smooth, no broken edges and no tremor phenomenon
Small incision resistance, improved the openning speed
Excellent for making clean and accurate holes on glass and tile
Designed with diamond coated tip and sturdy metal body, gives good performance and longer life
Specifications:
Product Name:Glass Hole Saw;
Material:Metal
Color : Silver
Cutting Hole Outer Diameter: 4mm/0.16"
Shank Hole Diameter:2mm/0.07"
Shank Dia (Approx.):2mm/0.07";
Total Length : 50mm/2"
Size:5x0.2x0.2cm/2x0.07x0.07Inch
Weight:25g


Package included:
10 x Glass Hole Saw

Features

  • Small incision resistance, improved the openning speed
  • It can cut tidy, smooth, no broken edges and no tremor phenomenon
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Brand: BQLZR   |   Manufacturer: BQLZR

Item Dimensions: 0.39 x 1.97 x 2.76 inches (1.0 x 5.0 x 7.0 cm)   |   Package Dimensions: 0.31 x 2.72 x 2.72 inches (0.8 x 6.9 x 6.9 cm)

Amazon Price: $5.51 | as of 11/13/2018(10:36pm pst)
Availibility: Usually ships in 24 hours
List Price: $5.51

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  #12

Dremel 664DR Diamond Drill FlipBit

Model: 664DR   |    Mpn: 664DR   |    Ean: 0080596039585   |    PartNumber: 664DR   |   Asin: B0105DADS0

The 664DR Diamond Drill FlipBit features superior long life compared to other diamond drill bits and its flute design is faster at eliminating material compared to core bits. Its one-of-a-kind FlipBit design lets you drill two hole sizes with one bit by simply flipping the bit over to select a different size. The FipBit is ideal for drilling in both flat and contoured surfaces and can be used to enlarge holes and make small cuts. Makers will find the 664DR ideal for creating jewelry, ornaments, art, and decor. The 664DR Diamond Drill FlipBit can be used on glass, ceramic wall tile, glass block, stone, and glass bottles.

Features

  • New FlipBit design - Use one bit to make 1.6mm and 2.1mm holes
  • Perform three functions - drill holes, enlarge holes, make small cuts
  • Drill hard materials - glass, tile, stone, ceramics, and more
  • 5X longer life than existing Dremel solutions
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Brand: Dremel   |   Manufacturer: Dremel

Item Dimensions: 4 x 1.94 x 0.67 inches (10.2 x 4.9 x 1.7 cm)   |   Package Dimensions: 0.3 x 1.8 x 3.2 inches (0.8 x 4.6 x 8.1 cm)

Amazon Price: $13.71 | as of 11/13/2018(10:36pm pst)
Availibility:
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  #13

DEWALT DWA1209 9/64" Pilot Point Industrial Cobalt Drill Bit

Model: DWA1209   |    Mpn: DWA1209   |    Ean: 0885911410762   |    PartNumber: DWA1209   |   Asin: B015J5HOR2

The DEWALT DWA1209 9/64" Pilot Point Industrial Cobalt Drill Bit is designed for maximum speed and life in stainless steel and other hard metals. This bit features a pilot point and split tip design that starts on contact and eliminates bit walking along for more control. Commonly used for drilling into stainless steel, drilling into angle iron, I-Beams, and other similar metals

Features

  • Designed for maximum speed and life
  • Pilot point and split tip design
  • No bit walking - more user control
  • Intended to be used on hard metals
  • See more on Amazon...

Brand: DEWALT   |   Manufacturer: Dewalt

Item Dimensions: 5.75 x 0.15 x 1.87 inches (14.6 x 0.4 x 4.7 cm)   |   Package Dimensions: 0.2 x 2 x 6 inches (0.5 x 5.1 x 15.2 cm)

Amazon Price: $4.48 | as of 11/13/2018(10:36pm pst)
Availibility: Usually ships in 24 hours
List Price: $4.59

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  #14

Set of 4 Glass Drill Bits Diamond Coated Core Drill Bits Hole Saws

Model: GLS-239   |    Mpn: GLS-239   |    Ean: 0661825302399   |    PartNumber: GLS-239   |   Asin: B004UGG5L8

Set of 4 Glass Drill Bits Diamond Coated Core Drill Bits Hole Saws

Set of 4 different diameter and includes sizes: 1/8", 1/4", 3/8" and 1/2".

Description:

These diamond coated core drill bits remove a complete circle from the glass or other materials and only need water for lubrication.

Can be used with a standard electric drill.

( GLS - 239 )

Features

  • Set of 4, DIAMOND COATED CORE DRILL BITS
  • Set of 4 different diameter and includes sizes: 1/8, 1/4 , 3/8 and 1/2
  • Can be used with a standard electric drill.
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Brand: Kent Blades   |   Manufacturer: Kent Blades

Item Dimensions: 0.5 x 3 x 3 inches (1.3 x 7.6 x 7.6 cm)   |   Package Dimensions: 0.5 x 3 x 4 inches (1.3 x 7.6 x 10.2 cm)

Amazon Price: $28.90 | as of 11/13/2018(10:36pm pst)
Availibility: Usually ships in 1-2 business days
List Price: $28.90

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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, back holders to be used with normal electric hand drills which take 3/8" shank.

Not suitable for resin bond segmented core drill bits or diameter over 2-1/2". Optimal for DAMO core drill bits.

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: $14.90 | as of 11/13/2018(10:36pm pst)
Availibility: Usually ships in 24 hours
List Price: $19.90

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  #16

Bosch T3925SC 7 In. Extension SDS-plus for SPEEDCORE Thin-wall Core Bits

Model: T3925SC   |    Mpn: T3925SC   |    Ean: 0000346430103   |    PartNumber: T3925SC   |   Asin: B00EMFOPBE

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

Features

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

Item Dimensions: 10.5 x 1.63 x 0.81 inches (26.7 x 4.1 x 2.1 cm)   |   Package Dimensions: 0.5 x 1 x 10.1 inches (1.3 x 2.5 x 25.7 cm)

Amazon Price: $12.99 | as of 11/13/2018(10:36pm pst)
Availibility: Usually ships in 24 hours
List Price: $16.99

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  #17

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
  • See more on Amazon...

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 11/13/2018(10:36pm pst)
Availibility: Usually ships in 24 hours
List Price: $39.50

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  #18

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: $50.38 | as of 11/13/2018(10:36pm pst)
Availibility: Usually ships in 24 hours
List Price: $63.72 | Used Price: $41.15

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  #19

Joiner 6mm 1/4" inch Diamond Hole Saw Core Drill Bit Coated Masonry Drilling Cutter Glass Marble Tile Granite Pack of 20Pcs

 Ean: 0708747506068   |    PartNumber: 43398-32016   |   Asin: B075ZSP2K4

20Pcs 6mm 1/4" Diamond Coated Hole Saw Drill Bits For Glass Tile Ceramic Granite The diamond coated hole saw suitable for use in drill hole on glass, marble, tile or granite Hole Diameter : 6mm (close to 1/4") Total length : 51mm (2") Drill depth: 20mm depth Shank diameter: 5.3mm (0.21") Quantity: 20 Pcs Drilling speed: Drill a Holes In Seconds Use with water as a lubricant Quick Tips 1. Please add water for coolant and drill slowly 2. Start drill at 45 Degree to surface and align to 90 Degree as hole forms 3. Never use drills while machine is in hammer action. 4. Holes Require No Futher Work As Cutting Is Clean We Can List Any Size & Amount Of This Product: Hole diameter from 0.4mm to 230mm Regular Air postage from China to Worldwide is FREE and takes 10-35 days delivery to your home We will send out your order within 1-2 days after payment has been received and cleared. Please let us know if you are looking for other accessories or hardware. Should you have any queries, please contact me directly. Type: Core Drill Bit Use: Masonry Drilling Material: Diamond, Metal

Features

  • The diamond coated hole saw suitable for use in drill hole on glass, marble, tile or granite
  • Hole Diameter: 6mm (close to 1/4) ;Total length: 51mm (2);Drill depth: 20mm depth
  • Product Name:6mm Diamond tip drill bit, 1/4 inch Glass hole saw bit; Please add water for coolant
  • Start drill at 45 Degree to surface and align to 90 Degree as hole forms
  • Use with water as a lubricant; Holes Require No Futher Work As Cutting Is Clean
  • See more on Amazon...

Brand: Joiner   |   Manufacturer: Joiner

Package Dimensions: 1.77 x 6.3 x 7 inches (4.5 x 16.0 x 17.8 cm)

Amazon Price: $13.99 | as of 11/13/2018(10:36pm pst)
Availibility: Usually ships in 24 hours
List Price: $13.99

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  #20

Concord Blades CBD04500HP 4-1/2 Inch Laser Welded Dry/Wet Diamond Core Drill Bit

Model: CBD04500HP   |    Mpn: CBD0450   |    Ean: 0812763023130   |    PartNumber: CBD0450   |   Asin: B00LQKU8TG

4-1/2 Inch Laser Welded Dry/Wet Diamond Core Drill Bit with 9 Inch Tube Length is of professional quality for dry masonry with laser welded individual segments to hold up under extreme heat and cutting pressure. Barrel vents increase air flow to dissipate heat and cool the core bit. Specially formulated professional quality turbo segments provide fast cutting and long life. NOT RECOMMENDED ON CONCRETE and REINFORCED CONCRETE. This core bit is used for general purpose dry drilling on a variety of soft brick and concrete block using either a Handheld Core Drill or a Core Drill Rig.

Features

  • 10 mm segment height, 4.6mm Segment Width, 5/8"-11mm Arbor
  • Use Dry/Wet
  • This core bit is used for general purpose dry drilling on a variety of soft brick and concrete block using either a Handheld Core Drill or a Core Drill Rig
  • Does not come with a pilot bit
  • Item is a pearlescent color. It changes between white and silver depending on the lighting
  • See more on Amazon...

Brand: Concord Blades   |   Manufacturer: Concord Industrial Products

Item Dimensions: 4.5 x 4.5 x 9 inches (11.4 x 11.4 x 22.9 cm)   |   Package Dimensions: 5.2 x 5.3 x 11.9 inches (13.2 x 13.5 x 30.2 cm)

Amazon Price: $62.73 | as of 11/13/2018(10:36pm pst)
Availibility: Usually ships in 24 hours
List Price: $80.22

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