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    116 Products
    About Drill Bits
    industrial info icon

    Compare material, finish, length class, and decimal size equivalents.

    Material

    For Material

    Rebar-Cutting Core Drill Bits for Concrete

    Core out large holes in concrete, even if it's reinforced with rebar mesh. No need to switch bits, these have a diamond-coated edge that keeps on cutting and resists wear to stay sharp.
    Threaded-Hub Shank for Rotary Only Drilling
    Image of Product. Front orientation. Drill Bits. Rebar-Cutting Core Drill Bits for Concrete, Threaded-Hub Shank for Rotary Only Drilling.
    Bits are designed for wet drilling on a drilling rig. To avoid damage to bits and tools, do not use for dry drilling or with portable drills or grinders.
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Shank
    Size
    Thread
    Size
    Bit ID
    Mfr.
    Each
    Diamond Coated
     
    Standard Point
    1"
    		1"
    		15 1/2"13"1"5/8"-11
    		3/4"Di-Corp2872A510000000
    1 1/8"
    		1.125"
    		15 1/2"13"1 1/8"5/8"-11
    		7/8"Di-Corp2872A29000000
    1 1/4"
    		1.25"
    		15 1/2"13"1 1/4"5/8"-11
    		1"Di-Corp2872A52000000
    1 3/8"
    		1.375"
    		15 1/2"13"1 3/8"5/8"-11
    		1 1/8"Di-Corp2872A31000000
    1 1/2"
    		1.5"
    		15 1/2"13"1 1/2"5/8"-11
    		1 1/4"Di-Corp2872A53000000
    1 3/4"
    		1.75"
    		15 1/2"13"1 3/4"1 1/4"-7
    		1 1/2"Di-Corp2872A54000000
    2"
    		2"
    		16 1/4"14.5"2"1 1/4"-7
    		1 3/4"Di-Corp2872A55000000
    2 1/4"
    		2.25"
    		15 1/2"13"2 1/4"1 1/4"-7
    		2"Di-Corp2872A34000000
    2 1/2"
    		2.5"
    		15 1/2"13"2 1/2"1 1/4"-7
    		2 1/4"Di-Corp2872A56000000
    2 3/4"
    		2.75"
    		15 1/2"13"2 3/4"1 1/4"-7
    		2 1/2"Di-Corp2872A35000000
    3"
    		3"
    		16 7/16"14.5"3"1 1/4"-7
    		2 3/4"Di-Corp2872A57000000
    3 1/2"
    		3.5"
    		15 1/2"13"3 1/2"1 1/4"-7
    		3 1/4"Di-Corp2872A37000000
    4"
    		4"
    		15 1/2"13"4"1 1/4"-7
    		3 3/4"Di-Corp2872A58000000
    4 1/2"
    		4.5"
    		15 1/2"13"4 1/2"1 1/4"-7
    		4 1/4"Di-Corp2872A59000000
    5"
    		5"
    		15 1/2"13"5"1 1/4"-7
    		4 3/4"Di-Corp2872A61000000
    6"
    		6"
    		15 1/2"13"6"1 1/4"-7
    		5 3/4"Di-Corp2872A62000000
    7"
    		7"
    		15 1/2"13"7"1 1/4"-7
    		6 3/4"Di-Corp2872A43000000
    8"
    		8"
    		15 1/2"13"8"1 1/4"-7
    		7 5/8"Di-Corp2872A63000000
    10"
    		10"
    		15 1/2"13"10"1 1/4"-7
    		9 5/8"Di-Corp2872A22000000
    12"
    		12"
    		15 1/2"13"12"1 1/4"-7
    		11 5/8"Di-Corp2872A23000000
     
    Drill Rig Thread Adapters
    Image of Product. Front orientation. Drill Rig Thread Adapters.
    Use your bit on a drilling rig with a different thread size.
    Thread SIze
    Overall
    Lg.
    Male Thread
    Size
    Female Thread
    Size
    Each
    For Threaded-Hub-Shank Drill Bits
    5 3/8"5/8"-11
    		1 1/4"-7
    		2872A990000000
     

    Drill Bits for Glass and Ceramic

    Image of System. Front orientation. Contains Annotated, MultipleImages. Drill Bits. Drill Bits for Glass and Ceramic, Core Bit.

    Core Bit

    Quickly create large holes in sheets of glass and ceramic using a drill press. These bits drill smoothly through fragile materials, reducing the chance of chipping and cracking. They have a diamond coating, the hardest finish for the longest life. Bits require an adapter (sold separately) to supply coolant during drilling.
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Bit
    ID
    Diamond
    Tip Lg.
    Diamond
    Tip Grit
    Thread
    Size
    Mfr.
    Each
    Core Bit
     
    Diamond Coated
    3/32"
    		0.0938"
    		3 1/2"2"0.043"1/8"1005/8"-18
    		Continental Diamond Tool2868A460000000
    1/8"
    		0.125"
    		3 1/2"2"0.075"1/4"1005/8"-18
    		Continental Diamond Tool2868A21000000
    5/32"
    		0.1563"
    		3 1/2"2"0.106"1/4"1005/8"-18
    		Continental Diamond Tool2868A22000000
    3/16"
    		0.1875"
    		3 1/2"2"0.137"1/4"1005/8"-18
    		Continental Diamond Tool2868A23000000
    7/32"
    		0.2188"
    		3 1/2"2"0.169"1/4"1005/8"-18
    		Continental Diamond Tool2868A27000000
    1/4"
    		0.25"
    		3 1/2"2"0.2"1/4"1005/8"-18
    		Continental Diamond Tool2868A24000000
    9/32"
    		0.2813"
    		3 1/2"2"0.231"1/4"1005/8"-18
    		Continental Diamond Tool2868A28000000
    5/16"
    		0.3125"
    		3 1/2"2"0.262"1/4"1005/8"-18
    		Continental Diamond Tool2868A29000000
    3/8"
    		0.375"
    		3 1/2"2"0.325"1/4"1005/8"-18
    		Continental Diamond Tool2868A25000000
    7/16"
    		0.4375"
    		3 1/2"2"0.387"1/4"1005/8"-18
    		Continental Diamond Tool2868A33000000
    1/2"
    		0.5"
    		3 1/2"2"0.446"1/4"1005/8"-18
    		Continental Diamond Tool2868A26000000
    9/16"
    		0.5625"
    		3 1/2"2"0.504"1/4"1005/8"-18
    		Continental Diamond Tool2868A18000000
    5/8"
    		0.625"
    		3 1/2"2"0.562"1/4"1005/8"-18
    		Continental Diamond Tool2868A35000000
    3/4"
    		0.75"
    		3 1/2"2"0.692"1/4"1005/8"-18
    		Continental Diamond Tool2868A36000000
    7/8"
    		0.875"
    		3 1/2"2"0.817"1/4"1005/8"-18
    		Continental Diamond Tool2868A38000000
    1"
    		1"
    		3 1/2"2"0.94"1/4"1005/8"-18
    		Continental Diamond Tool2868A37000000
    1 1/4"
    		1.25"
    		3 1/2"2"1.19"1/4"1005/8"-18
    		Continental Diamond Tool2868A39000000
     
    Core Bit Adapters
    Shank
    Size
    Shank
    Type
    Shank
    Lg.
    Body
    Lg.
    For Thread
    Size
    Inlet Pipe
    Size
    Inlet Thread
    Type
    Each
    3/8"Round
    		1 1/2"3 1/2"5/8"-18
    		1/8
    		NPT
    		2868A120000000
    1/2"Round
    		1 1/2"3 1/2"5/8"-18
    		1/8
    		NPT
    		2868A11000000

    Carbide-Tipped Core Drill Bits for Masonry and Concrete

    Remove a core of material with these hollow bits to make larger holes than fluted masonry bits. They're often used for installing pipe and conduit through brick and concrete. The carbide tip resists wear and heat to stay sharp.
    SDS-Max Shank for Hammer and Rotary Drilling
    Image of Product. Front orientation. Drill Bits. Carbide-Tipped Core Drill Bits for Masonry and Concrete, SDS-Max Shank for Hammer and Rotary Drilling.
    Image of Specification. SDS-Max Shank. Front orientation. SDS Max Shank.

    SDS-Max

    Shank

    The slotted shank is compatible with SDS-Max-drive rotary hammers. These bits use simultaneous rotary and hammering action to penetrate material. Also known as percussion or impact bits.
    Pilot Drills—Cut a groove before drilling to make starting the hole easier.
    Drill Bits
    Pilot Drills
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Specs. Met
    Includes
    Mfr.
    Each
    Each
    Uncoated
     
    Standard Point
    1 3/4"
    		1.75"
    		22"17"ANSI B212.15Core Ejector Key, Pilot DrillBosch88865A22000000088865A97000000
    2"
    		2"
    		12"7"ANSI B212.15Core Ejector Key, Pilot DrillBosch88865A6300000088865A9700000
    2"
    		2"
    		22"17"ANSI B212.15Core Ejector Key, Pilot DrillBosch88865A6400000088865A9700000
    2 5/8"
    		2.625"
    		12"7"ANSI B212.15Core Ejector Key, Pilot DrillBosch88865A2300000088865A9700000
    2 5/8"
    		2.625"
    		22"17"ANSI B212.15Core Ejector Key, Pilot DrillBosch88865A2400000088865A9700000
    3 1/4"
    		3.25"
    		12"7"ANSI B212.15Core Ejector Key, Pilot DrillBosch88865A2500000088865A9700000
    3 1/4"
    		3.25"
    		22"17"ANSI B212.15Core Ejector Key, Pilot DrillBosch88865A2600000088865A9700000
    3 9/16"
    		3.5625"
    		12"7"ANSI B212.15Core Ejector Key, Pilot DrillBosch88865A7900000088865A9700000
    4"
    		4"
    		22"17"ANSI B212.15Core Ejector Key, Pilot DrillBosch88865A7600000088865A9700000
    5"
    		5"
    		22"17"ANSI B212.15Core Ejector Key, Pilot DrillBosch88865A7400000088865A9700000
     
    Hex Shank for Rotary Only Drilling
    Image of Product. Front orientation. Drill Bits. Carbide-Tipped Core Drill Bits for Masonry and Concrete, Hex Shank for Rotary Only Drilling.
    The hex shape reduces the chance of the shank slipping in the chuck. Pair these bits with hand-held power drills and hammer drills set to rotary-only mode. Because they use rotary action only, they require more pressure to grind up material than other bits.
    Pilot Drills—Cut a groove before drilling to make starting the hole easier.
    Drill Bits
    Pilot Drills
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Shank
    Size
    Specs. Met
    Mfr.
    Each
    Each
    Uncoated
    1"
    		1"
    		9"7"1/2"ANSI B212.15Tru-Cut2942A2300000002942A89000000
    1"
    		1"
    		12"10"1/2"ANSI B212.15Tru-Cut2942A420000002942A8900000
    1 1/4"
    		1.25"
    		12"10"1/2"ANSI B212.15Tru-Cut2942A250000002942A8900000
    1 1/2"
    		1.5"
    		12"10"1/2"ANSI B212.15Tru-Cut2942A270000002942A8900000
    1 3/4"
    		1.75"
    		12"10"1/2"ANSI B212.15Tru-Cut2942A410000002942A8900000
    2"
    		2"
    		12"10"1/2"ANSI B212.15Tru-Cut2942A430000002942A8900000
    2 1/2"
    		2.5"
    		12"10"1/2"ANSI B212.15Tru-Cut2942A470000002942A8900000
    3"
    		3"
    		12"10"1/2"ANSI B212.15Tru-Cut2942A480000002942A6900000
     
    Extensions
    Each
    18" Extension for 1/2" Hex Shank Size2942A62000000
    18" Extension for 3/4" Hex Shank Size2942A7300000

    Drill Bits for Paper and Fabric

    Image of Product. Front orientation. Drill Bits. Drill Bits for Paper and Fabric.
    A razor-sharp cutting edge makes clean holes through stacks of paper, cardboard, and fabric. These bits are often used for binding documents and sample swatches. They are standard Style A for use with Challenge and Lassco paper-drilling machines.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Mfr.
    Each
    Core Bit
     
    Uncoated
    1/8"
    		0.125"
    		3 1/8"1"Round
    		11/16"Challenge3164A21000000
    3/16"
    		0.1875"
    		3 1/8"1 3/4"Round
    		11/16"Challenge3164A2300000
    1/4"
    		0.25"
    		3 1/8"2"Round
    		11/16"Challenge3164A2500000
    5/16"
    		0.3125"
    		3 1/8"2"Round
    		11/16"Challenge3164A2700000
    3/8"
    		0.375"
    		3 1/8"2"Round
    		11/16"Challenge3164A2900000
    7/16"
    		0.4375"
    		3 1/8"2"Round
    		11/16"Challenge3164A3100000
    1/2"
    		0.5"
    		3 1/8"2"Round
    		11/16"Challenge3164A3300000
     

    Changeable-Size Carbide-Tipped Core Drill Bits for Masonry and Concrete

    Instead of investing in multiple bits, change the bit body to drill a different-sized hole. These hollow bits remove a large core of material from concrete, brick, and masonry for installing pipe and conduit. The carbide tip resists wear and heat to stay sharp. Bits include a pilot drill to make starting holes easier.
    SDS-Max Shank for Hammer and Rotary Drilling
    Image of Product. Front orientation. Drill Bits. Changeable-Size Carbide-Tipped Core Drill Bits for Masonry and Concrete, SDS-Max Shank for Hammer and Rotary Drilling.
    Image of Specification. SDS-Max Shank. Front orientation. SDS Max Shank.

    SDS-Max

    Shank

    The slotted shank is compatible with SDS-Max-drive rotary hammers. These bits use simultaneous rotary and hammering action to penetrate material. Also known as percussion or impact bits.
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Specs. Met
    Includes
    Mfr.
    Each
    Uncoated
     
    Standard Point
    1 1/2"
    		1.5"
    		17"12"ANSI B212.15Pilot DrillTru-Cut3084A9140000000
    1 3/4"
    		1.75"
    		17"12"ANSI B212.15Pilot DrillTru-Cut3084A915000000
    2"
    		2"
    		17"12"ANSI B212.15Pilot DrillTru-Cut3084A916000000
    2 1/2"
    		2.5"
    		17"12"ANSI B212.15Pilot DrillTru-Cut3084A917000000
    3"
    		3"
    		17"12"ANSI B212.15Pilot DrillTru-Cut3084A918000000
    3 1/2"
    		3.5"
    		17"12"ANSI B212.15Pilot DrillTru-Cut3084A919000000
    4"
    		4"
    		17"12"ANSI B212.15Pilot DrillTru-Cut3084A921000000
    4 1/2"
    		4.5"
    		17"12"ANSI B212.15Pilot DrillTru-Cut3084A922000000
    5"
    		5"
    		17"12"ANSI B212.15Pilot DrillTru-Cut3084A923000000
     
    Accessories and Replacements for Drill Bits
    Changeable Bit Bodies
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Component
    Specs. Met
    Each
    Uncoated Carbide-Tipped Steel
    1 1/2"
    		1.5"
    		5"Bit BodyANSI B212.153084A430000000
    1 3/4"
    		1.75"
    		5"Bit BodyANSI B212.153084A44000000
    2"
    		2"
    		5"Bit BodyANSI B212.153084A45000000
    2 1/2"
    		2.5"
    		5"Bit BodyANSI B212.153084A46000000
    3"
    		3"
    		5"Bit BodyANSI B212.153084A47000000
    3 1/2"
    		3.5"
    		5"Bit BodyANSI B212.153084A48000000
    4"
    		4"
    		5"Bit BodyANSI B212.153084A49000000
    4 1/2"
    		4.5"
    		5"Bit BodyANSI B212.153084A56000000
    5"
    		5"
    		5"Bit BodyANSI B212.153084A57000000
     
    Extensions, Replacement Shanks and Replacement Pilot Drills
    Each
    6" Overall Length Extension3084A59000000
    12" Overall Length Extension3084A6300000
    18" Overall Length Extension3084A64000000
    SDS-Max Shank3084A12100000
    Pilot Drill for Changeable-Size Masonry Core Drill Bit3084A5800000
    Spline Shank for Hammer and Rotary Drilling
    Image of Product. Side1 orientation. Drill Bits. Changeable-Size Carbide-Tipped Core Drill Bits for Masonry and Concrete, Spline Shank for Hammer and Rotary Drilling.
    Image of Specification. Spline Shank. Front orientation. Spline Shank.

    Spline

    Shank

    The shank has 12 splines for use with a spline-drive rotary hammer, which rotate and hammers bits simultaneously to penetrate material. Also known as percussion or impact bits.
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Specs. Met
    Includes
    Mfr.
    Each
    Uncoated
     
    Standard Point
    1 1/2"
    		1.5"
    		17"12"ANSI B212.15Pilot DrillTru-Cut3084A8140000000
    1 3/4"
    		1.75"
    		17"12"ANSI B212.15Pilot DrillTru-Cut3084A815000000
    2"
    		2"
    		17"12"ANSI B212.15Pilot DrillTru-Cut3084A816000000
    2 1/2"
    		2.5"
    		17"12"ANSI B212.15Pilot DrillTru-Cut3084A817000000
    3"
    		3"
    		17"12"ANSI B212.15Pilot DrillTru-Cut3084A818000000
    3 1/2"
    		3.5"
    		17"12"ANSI B212.15Pilot DrillTru-Cut3084A819000000
    4 1/2"
    		4.5"
    		17"12"ANSI B212.15Pilot DrillTru-Cut3084A822000000
    5"
    		5"
    		17"12"ANSI B212.15Pilot DrillTru-Cut3084A823000000
     
    Accessories and Replacements for Drill Bits
    Changeable Bit Bodies
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Component
    Specs. Met
    Each
    Uncoated Carbide-Tipped Steel
    1 1/2"
    		1.5"
    		5"Bit BodyANSI B212.153084A430000000
    1 3/4"
    		1.75"
    		5"Bit BodyANSI B212.153084A44000000
    2"
    		2"
    		5"Bit BodyANSI B212.153084A45000000
    2 1/2"
    		2.5"
    		5"Bit BodyANSI B212.153084A46000000
    3"
    		3"
    		5"Bit BodyANSI B212.153084A47000000
    3 1/2"
    		3.5"
    		5"Bit BodyANSI B212.153084A48000000
    4 1/2"
    		4.5"
    		5"Bit BodyANSI B212.153084A56000000
    5"
    		5"
    		5"Bit BodyANSI B212.153084A57000000
     
    Extensions, Replacement Shanks and Replacement Pilot Drills
    Each
    6" Overall Length Extension3084A59000000
    12" Overall Length Extension3084A6300000
    18" Overall Length Extension3084A64000000
    Spline Shank3084A13200000
    Pilot Drill for Changeable-Size Masonry Core Drill Bit3084A5800000

    High-Speed Steel Drill Bits for Wire Installation

    Image of ProductInUse. Front orientation. Contains Annotated. Drill Bits. High-Speed Steel Drill Bits for Wire Installation.
    Feed electrical wire, data cables, and phone lines through walls with the same tool used to make the hole. Once you've drilled, insert wire through the bit's hollow shaft to the other side of the wall. These are simpler to use than flexible-shaft bits since you do not need to strip the end of the wire. Also known as bell hanger bits.
    Black Oxide—The dark finish increases wear resistance and reduces friction to improve chip flow, so these bits can last 50% longer than uncoated bits.
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Shank
    Size
    Drill Bit
    Point Type
    Mfr.
    Each
    Black Oxide
     
    Round Shank
    21/64"
    		0.328"
    		18"3.31"5/16"Standard
    		RTJ Tool2934A46000000
    21/64"
    		0.328"
    		36"3.31"5/16"Standard
    		RTJ Tool2934A4800000
    25/64"
    		0.39"
    		18"3.88"3/8"Standard
    		RTJ Tool2934A5300000
    25/64"
    		0.39"
    		36"3.88"3/8"Standard
    		RTJ Tool2934A5500000
    29/64"
    		0.453"
    		18"4.19"7/16"Standard
    		RTJ Tool2934A5600000
    29/64"
    		0.453"
    		36"4.19"7/16"Standard
    		RTJ Tool2934A5800000
    33/64"
    		0.515"
    		18"4.81"1/2"Standard
    		RTJ Tool2934A6300000
    33/64"
    		0.515"
    		36"4.81"1/2"Standard
    		RTJ Tool2934A6500000
     

    Carbide-Tipped Drill Bits for Wire Installation

    Image of ProductInUse. Front orientation. Contains Annotated. Drill Bits. Carbide-Tipped Drill Bits for Wire Installation.
    These bits are hard enough to drill through masonry and concrete as well as wood. Feed electrical wire, data cables, and phone lines through walls with the same tool used to make the hole. Once you've drilled, insert wire through the bit's hollow shaft to the other side of the wall. These are simpler to use than flexible-shaft bits since you do not need to strip the end of the wire. Also known as bell hanger bits.
    Black Oxide—The dark finish increases wear resistance and reduces friction to improve chip flow, so these bits can last 50% longer than uncoated bits.
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Shank
    Size
    Drill Bit
    Point Type
    Mfr.
    Each
    Black Oxide/Carbide Tipped
     
    Round Shank
    21/64"
    		0.328"
    		18"4"5/16"Standard
    		RTJ Tool2934A43000000
    21/64"
    		0.328"
    		36"4"5/16"Standard
    		RTJ Tool2934A4500000
    7/16"
    		0.438"
    		18"4"3/8"Standard
    		RTJ Tool2934A4900000
    7/16"
    		0.438"
    		36"4"3/8"Standard
    		RTJ Tool2934A5200000
    9/16"
    		0.563"
    		18"4"1/2"Standard
    		RTJ Tool2934A5900000
    9/16"
    		0.563"
    		36"4"1/2"Standard
    		RTJ Tool2934A6200000
     
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