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    15 Products
    About Drill Bits
    industrial info icon

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

    Material

    For Material

    For Material

    Performance

    Fast-Cutting Smooth-Finish Drill Bits for Wood

    Image of Product. Front orientation. Drill Bits. Fast-Cutting Smooth-Finish Drill Bits for Wood, Round Shank, Standard Point.
    Image of Product. Front orientation. Drill Bits. Fast-Cutting Smooth-Finish Drill Bits for Wood, Quick-Change Hex Shank, Screw Point.

    Round Shank

    Standard Point

    Quick-Change Hex Shank

    Screw Point

    Not only do these bits bore holes faster than standard smooth-finish bits, they create less friction and heat buildup to last longer. The spurred teeth have a long life, but they're less effective at guiding the bit so cuts on angled and overlapping holes tend to be rougher. Also known as multispur 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
     
    Quick-Change Hex Shank
    3"
    		3"
    		6 1/4"—1/2"Screw
    		Milwaukee3188A220000000
     
    Uncoated
     
    Round Shank
    3"
    		3"
    		6"4"1/2"Standard
    		Stern2890A46000000
     

    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
    3"
    		3"
    		16 7/16"14.5"3"1 1/4"-7
    		2 3/4"Di-Corp2872A570000000
     

    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
    3"
    		3"
    		17"12"ANSI B212.15Pilot DrillTru-Cut3084A9180000000
     
    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
    3"
    		3"
    		5"Bit BodyANSI B212.153084A470000000
     
    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
    3"
    		3"
    		17"12"ANSI B212.15Pilot DrillTru-Cut3084A8180000000
     
    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
    3"
    		3"
    		5"Bit BodyANSI B212.153084A470000000
     
    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

    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.
    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
    3"
    		3"
    		12"10"1/2"ANSI B212.15Tru-Cut2942A4800000002942A69000000
     
    Extensions
    Each
    18" Extension for 3/4" Hex Shank Size2942A73000000
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