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    66 Products

    Hole-Starting Drill Bits

    Create an accurate starting place in your workpiece. Cut an indent with these bits, then continue drilling with a longer bit. The indent prevents slipping so the final hole is centered and precise. Also known as spotting drill bits.
    Cobalt Steel Short Length
    Image of Product. Front orientation. Drill Bits. Hole-Starting Drill Bits, Short Length, Spiral Flute, Round Shank.

    Spiral Flute

    Round Shank

    Image of Specification. Standard. Front orientation. Contains Border. Standard Point. For Metal.

    Standard

    Combine the toughness and wear resistance of cobalt steel with a short length for drilling the straightest holes. These last twice as long as high-speed steel and can run up to 25% faster at higher temperatures without damaging the bit on hard metals like nickel. Also known as screw-machine and stub-length bits, they fit in tight spaces where longer bits can't.
    Titanium Aluminum Nitride (TiAlN) Coated—The hardest and most wear-resistant coating, especially at high temperatures. These bits are best for hard and abrasive materials, such as iron, titanium, and fiberglass.
    Uncoated—Polished to eject chips, these are also known as bright finish bits.
    120° Point Angle—For holes that will be followed by a drill bit with a point angle from 90° to 118°.
    Round Shank—The most common shank type. These fit in the chuck of drill presses and portable drills.
    Standard Point—Perform best in stationary tools, such as a drill press.
    Shank
    120° Point Angle
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Flute
    Type
    Type
    Size
    Drill Bit
    Point Type
    No. of
    Flutes
    Each
    Titanium Aluminum Nitride (TiAlN) Coated
    1/4"0.25"2 5/8"1.38"SpiralRound1/4"Standard2000000000000000
    3/8"0.375"3 1/2"1"SpiralRound3/8"Standard200000000000000
    1/2"0.5"4"1.38"SpiralRound1/2"Standard200000000000000
     
    Uncoated
    1/4"0.25"2 5/8"0.89"SpiralRound1/4"Standard20000000000000
    3/8"0.375"3 1/2"1"SpiralRound3/8"Standard20000000000000
    1/2"0.5"4"1.38"SpiralRound1/2"Standard20000000000000
    5/8"0.625"4 1/2"1.38"SpiralRound5/8"Standard20000000000000
    3/4"0.75"5 1/8"1.63"SpiralRound3/4"Standard20000000000000
    4.0 mm0.1575"52 mm12.7 mmSpiralRound4 mmStandard20000000000000
    5.0 mm0.1968"60 mm15 mmSpiralRound5 mmStandard20000000000000
     
    Carbide Short Length
    Image of Product. Front orientation. Drill Bits. Hole-Starting Drill Bits, Short Length, Spiral Flute, Round Shank.
    Image of Specification. Standard. Front orientation. Contains Border. Standard Point. For Metal.

    Spiral Flute

    Round Shank

    Standard

    Our shortest and most rigid bits are also the hardest and most wear resistant. They stay sharp at high temperatures and faster speeds for the straightest holes in hard and difficult-to-machine materials. Used in manufacturing and CNC drilling, they last 10 to 20 times longer than their closest alternative, cobalt steel. Carbide can be brittle, however, so these bits require a rigid machine tool holder to prevent breakage and should not be used in hand drilling applications.
    Titanium Nitride (TiN) Coated—Drill at higher speeds and last longer than uncoated bits, especially on materials like hardened steel, iron, and stainless steel.
    Titanium Aluminum Nitride (TiAlN) Coated—No drill bits last longer. These are the best for high-speed, high-temperature drilling of very hard and abrasive materials, including titanium and fiberglass.
    Uncoated—Excellent for a range of metals, they perform best when used on steel, aluminum, brass, and bronze.
    120° Point Angle—For holes that will be followed by a drill bit with a point angle from 90° to 118°.
    Round Shank—The most common shank type fits in a drill press chuck.
    Standard Point—Perform best in stationary tools, such as a drill press.
    Shank
    120° Point Angle
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Flute
    Type
    Type
    Size
    Drill Bit
    Point Type
    No. of
    Flutes
    Each
    Titanium Nitride (TiN) Coated
    1/8"0.125"2"1/8"SpiralRound1/8"Standard200000000000000
    3/16"0.1875"2"3/16"SpiralRound3/16"Standard20000000000000
    1/4"0.25"2 1/2"1/4"SpiralRound1/4"Standard20000000000000
    5/16"0.3125"2 1/2"5/16"SpiralRound5/16"Standard20000000000000
    3/8"0.375"2 1/2"3/8"SpiralRound3/8"Standard20000000000000
    1/2"0.5"3"1/2"SpiralRound1/2"Standard20000000000000
    8 mm0.315"63 mm8 mmSpiralRound8 mmStandard2000000000000
     
    Titanium Aluminum Nitride (TiAlN) Coated
    1/8"0.125"2"1/8"SpiralRound1/8"Standard20000000000000
    3/16"0.1875"2"3/16"SpiralRound3/16"Standard20000000000000
    1/4"0.25"2 1/2"1/4"SpiralRound1/4"Standard20000000000000
    5/16"0.3125"2 1/2"5/16"SpiralRound5/16"Standard20000000000000
    3/8"0.375"2 1/2"3/8"SpiralRound3/8"Standard20000000000000
    1/2"0.5"3"1/2"SpiralRound1/2"Standard20000000000000
     
    Uncoated
    1/8"0.125"2"1/8"SpiralRound1/8"Standard20000000000000
    3/16"0.1875"2"3/16"SpiralRound3/16"Standard20000000000000
    1/4"0.25"2 1/2"1/4"SpiralRound1/4"Standard2000000000000
    5/16"0.3125"2 1/2"5/16"SpiralRound5/16"Standard20000000000000
    3/8"0.375"2 1/2"0.38"SpiralRound3/8"Standard2000000000000
    1/2"0.5"3"1/2"SpiralRound1/2"Standard2000000000000
    5/8"0.625"3 1/2"0.63"SpiralRound5/8"Standard20000000000000
    3 mm0.1181"57 mm3 mmSpiralRound3 mmStandard20000000000000
    5 mm0.1968"63 mm5 mmSpiralRound5 mmStandard20000000000000
    6 mm0.2362"63 mm6 mmSpiralRound6 mmStandard20000000000000
    10 mm0.3937"70 mm10 mmSpiralRound10 mmStandard20000000000000
     

    Changeable-Size 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 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.
    Standard Point—The most common point type handles most jobs. However, for more aggressive cutting that generates a lot of heat, consider a multipoint or serrated bit.
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Specs. Met
    Includes
    Each
    Uncoated Carbide-Tipped Steel
     
    Standard Point
    1 1/2"1.5"17"12"ANSI B212.15Pilot Drill000000000000000
    1 3/4"1.75"17"12"ANSI B212.15Pilot Drill00000000000000
    2"2"17"12"ANSI B212.15Pilot Drill00000000000000
    2 1/2"2.5"17"12"ANSI B212.15Pilot Drill00000000000000
    3"3"17"12"ANSI B212.15Pilot Drill00000000000000
    3 1/2"3.5"17"12"ANSI B212.15Pilot Drill00000000000000
    4"4"17"12"ANSI B212.15Pilot Drill00000000000000
    4 1/2"4.5"17"12"ANSI B212.15Pilot Drill00000000000000
    5"5"17"12"ANSI B212.15Pilot Drill00000000000000
     
    Spline Shank for Hammer and Rotary Drilling
    Image of Product. Side1 orientation. Drill Bits. Changeable-Size 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.
    Standard Point—The most common point type handles most jobs. However, for more aggressive cutting that generates a lot of heat, consider a multipoint or serrated bit.
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Specs. Met
    Includes
    Each
    Uncoated Carbide-Tipped Steel
     
    Standard Point
    1 1/2"1.5"17"12"ANSI B212.15Pilot Drill000000000000000
    1 3/4"1.75"17"12"ANSI B212.15Pilot Drill00000000000000
    2"2"17"12"ANSI B212.15Pilot Drill00000000000000
    2 1/2"2.5"17"12"ANSI B212.15Pilot Drill00000000000000
    3"3"17"12"ANSI B212.15Pilot Drill00000000000000
    3 1/2"3.5"17"12"ANSI B212.15Pilot Drill00000000000000
    4 1/2"4.5"17"12"ANSI B212.15Pilot Drill00000000000000
    5"5"17"12"ANSI B212.15Pilot Drill00000000000000
     
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