McMaster-Carr logo
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    261 Products
    About Drill Bits
    industrial info icon

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

    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
    Each
    Uncoated
     
    Standard Point
    1 1/2"
    1.5"
    17"12"ANSI B212.15Pilot Drill3084A9140000000
    1 3/4"
    1.75"
    17"12"ANSI B212.15Pilot Drill3084A915000000
    2"
    2"
    17"12"ANSI B212.15Pilot Drill3084A916000000
    2 1/2"
    2.5"
    17"12"ANSI B212.15Pilot Drill3084A917000000
    3"
    3"
    17"12"ANSI B212.15Pilot Drill3084A918000000
    3 1/2"
    3.5"
    17"12"ANSI B212.15Pilot Drill3084A919000000
    4"
    4"
    17"12"ANSI B212.15Pilot Drill3084A921000000
    4 1/2"
    4.5"
    17"12"ANSI B212.15Pilot Drill3084A922000000
    5"
    5"
    17"12"ANSI B212.15Pilot Drill3084A923000000
     
    Accessories and Replacements for Drill Bits
    Changeable Bit Bodies
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Component
    Specs. Met
    Each
    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
     
    Drill Bit 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
    Each
    Uncoated
     
    Standard Point
    1 1/2"
    1.5"
    17"12"ANSI B212.15Pilot Drill3084A8140000000
    1 3/4"
    1.75"
    17"12"ANSI B212.15Pilot Drill3084A815000000
    2"
    2"
    17"12"ANSI B212.15Pilot Drill3084A816000000
    2 1/2"
    2.5"
    17"12"ANSI B212.15Pilot Drill3084A817000000
    3"
    3"
    17"12"ANSI B212.15Pilot Drill3084A818000000
    3 1/2"
    3.5"
    17"12"ANSI B212.15Pilot Drill3084A819000000
    4 1/2"
    4.5"
    17"12"ANSI B212.15Pilot Drill3084A822000000
    5"
    5"
    17"12"ANSI B212.15Pilot Drill3084A823000000
     
    Accessories and Replacements for Drill Bits
    Changeable Bit Bodies
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Component
    Specs. Met
    Each
    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
     
    Drill Bit 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.
    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
    Each
    Each
    Uncoated
     
    Standard Point
    1 3/4"
    1.75"
    22"17"ANSI B212.15Core Ejector Key, Pilot Drill88865A22000000088865A97000000
    2"
    2"
    12"7"ANSI B212.15Core Ejector Key, Pilot Drill88865A6300000088865A9700000
    2"
    2"
    22"17"ANSI B212.15Core Ejector Key, Pilot Drill88865A6400000088865A9700000
    2 5/8"
    2.625"
    12"7"ANSI B212.15Core Ejector Key, Pilot Drill88865A2300000088865A9700000
    2 5/8"
    2.625"
    22"17"ANSI B212.15Core Ejector Key, Pilot Drill88865A2400000088865A9700000
    3 1/4"
    3.25"
    12"7"ANSI B212.15Core Ejector Key, Pilot Drill88865A2500000088865A9700000
    3 1/4"
    3.25"
    22"17"ANSI B212.15Core Ejector Key, Pilot Drill88865A2600000088865A9700000
    3 9/16"
    3.5625"
    12"7"ANSI B212.15Core Ejector Key, Pilot Drill88865A7900000088865A9700000
    4"
    4"
    22"17"ANSI B212.15Core Ejector Key, Pilot Drill88865A7600000088865A9700000
    5"
    5"
    22"17"ANSI B212.15Core Ejector Key, Pilot Drill88865A7400000088865A9700000
     
    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
    Each
    Each
    Uncoated
    1"
    1"
    9"7"1/2"ANSI B212.152942A230000000———0
    1"
    1"
    12"10"1/2"ANSI B212.152942A42000000———0
    1 1/4"
    1.25"
    12"10"1/2"ANSI B212.152942A25000000———0
    1 1/2"
    1.5"
    12"10"1/2"ANSI B212.152942A27000000———0
    1 3/4"
    1.75"
    12"10"1/2"ANSI B212.152942A410000002942A89000000
    2"
    2"
    12"10"1/2"ANSI B212.152942A430000002942A8900000
    2 1/2"
    2.5"
    12"10"1/2"ANSI B212.152942A470000002942A6900000
    3"
    3"
    12"10"1/2"ANSI B212.152942A480000002942A6900000
     
    Drill Bit Extensions
    Each
    18" Extension for 1/2" Hex Shank Size2942A62000000
    18" Extension for 3/4" Hex Shank Size2942A7300000

    Stack-Drilling Hollow-Core Cutters for Magnetic-Base Drills

    Image of Product. Front orientation. Hollow-Core Cutters. Stack-Drilling Hollow-Core Cutters for Magnetic-Base Drills.
    The geometry of these cutters allows you to cut aligned holes in multiple sheets at one time. Use them with magnetic-base drills. Unlike drill bits, these cut only on the periphery of the hole and produce a solid slug. They're also known as annular cutters.
    Hollow-Core Cutter Pilot Pins—Pilot pins align the cutter and eject the slug. They're also known as ejector pins.
    Hollow-Core Cutters
    Hollow-Core
    Cutter Pilot Pins
    Dia.
    For Pilot
    Pin Dia.
    Each
    Each
    High-Speed Steel
     
    2" Cutting Depth
    1/2"3/16"5258A420000003124A82000000
    9/16"1/4"5258A430000031315A25300000
    5/8"1/4"5258A4400000031315A25300000
    11/16"1/4"5258A4500000031315A25300000
    3/4"1/4"5258A4600000031315A25300000
    13/16"1/4"5258A4700000031315A25300000
    7/8"1/4"5258A4800000031315A25300000
    15/16"1/4"5258A4900000031315A25300000
    1"1/4"5258A5100000031315A25300000
    1 1/8"1/4"5258A5200000031315A25300000
    1 3/16"1/4"5258A5300000031315A25300000
    1 1/4"1/4"5258A5400000031315A25300000
    1 5/16"1/4"5258A5500000031315A25300000
    1 3/8"1/4"5258A5600000031315A25300000
    1 7/16"1/4"5258A5700000031315A25300000
    1 1/2"1/4"5258A5800000031315A25300000
     
    Hollow-Core Cutter Arbor Adapters
    You can also pair the cutters with an arbor adapter (sold separately) when using a manual drill press or milling machine.
    Round Shank—Arbor adapters for a round shank fit a drill chuck or an R8 collet on a milling machine.
    Morse Taper Shank—Arbor adapters for a Morse Taper spindle are for use on a drill press.
    Shank Type
    Machine
    Taper No.
    Shank
    Dia.
    Overall
    Lg.
    Each
    For Cobalt Steel and High-Speed Steel
    Round3/4"5 1/8"31315A2540000000
    Morse TaperMorse 26 1/4"31315A25500000
    Morse TaperMorse 36 1/4"31315A251000000
     

    Hollow-Core Cutters for Magnetic-Base Drills

    Image of Product. Front orientation. Hollow-Core Cutters. Hollow-Core Cutters for Magnetic-Base Drills.
    Use these cutters with magnetic-base drills. Unlike drill bits, these cut only on the periphery of the hole and produce a solid slug. Also known as annular cutters.
    High-Speed Steel—High-speed steel cutters have a bright finish and are for general purpose cutting.
    Titanium Nitride (TiN)-Coated High-Speed Steel—Titanium nitride (TiN)-coated high-speed steel cutters last longer than uncoated high-speed steel.
    Cobalt Steel—Cobalt steel cutters offer better heat and abrasion resistance than high-speed steel.
    Carbide-Tipped Steel—Carbide-tipped steel cutters last longer than high-speed steel and cobalt steel cutters and are for high-volume cutting of difficult-to-machine materials. Note: These cutters are more sensitive to shock and vibration compared to other cutters and should not be used with Jancy magnetic-base drill model USA101.
    Hollow-Core Cutter Pilot Pins—Pilot pins align the cutter and eject the slug. They're also known as ejector pins.
    Hollow-Core Cutters
    Hollow-Core
    Cutter Pilot Pins
    Dia.
    For Pilot
    Pin Dia.
    Each
    Each
    High-Speed Steel
     
    1" Cutting Depth
    7/16"3/16"31315A1080000003124A81000000
    1/2"3/16"31315A141000003124A8100000
    9/16"1/4"31315A1120000031315A25200000
    5/8"1/4"31315A1130000031315A25200000
    11/16"1/4"31315A1140000031315A25200000
    3/4"1/4"31315A1150000031315A25200000
    13/16"1/4"31315A1160000031315A25200000
    7/8"1/4"31315A1170000031315A25200000
    15/16"1/4"31315A1180000031315A25200000
    1"1/4"31315A1190000031315A25200000
    1 1/16"1/4"31315A1210000031315A25200000
    1 1/8"1/4"31315A1220000031315A25200000
    1 3/16"1/4"31315A1230000031315A25200000
    1 1/4"1/4"31315A1240000031315A25200000
    1 5/16"1/4"31315A1250000031315A25200000
    1 3/8"1/4"31315A12600000031315A25200000
    1 1/2"1/4"31315A12800000031315A25200000
    1 5/8"1/4"31315A13100000031315A25200000
    1 3/4"1/4"31315A13300000031315A25200000
    2"1/4"31315A13700000031315A25200000
    12 mm1/4"6850A21000003124A8100000
    14 mm1/4"6850A230000031315A25200000
    16 mm1/4"6850A2500000———0
    18 mm1/4"6850A270000031315A25200000
    20 mm1/4"6850A290000031315A25200000
    24 mm1/4"6850A340000031315A25200000
    26 mm1/4"6850A360000031315A25200000
    28 mm1/4"6850A380000031315A25200000
    30 mm1/4"6850A410000031315A25200000
    32 mm1/4"6850A430000031315A25200000
     
    2" Cutting Depth
    7/16"3/16"31315A109000003124A8200000
    1/2"3/16"31315A241000003124A8200000
    9/16"1/4"31315A2120000031315A25300000
    5/8"1/4"31315A2130000031315A25300000
    11/16"1/4"31315A2140000031315A25300000
    3/4"1/4"31315A2150000031315A25300000
    13/16"1/4"31315A2160000031315A25300000
    7/8"1/4"31315A2170000031315A25300000
    15/16"1/4"31315A2180000031315A25300000
    1"1/4"31315A21900000031315A25300000
    1 1/16"1/4"31315A22100000031315A25300000
    1 1/8"1/4"31315A22200000031315A25300000
    1 3/16"1/4"31315A22300000031315A25300000
    1 1/4"1/4"31315A22400000031315A25300000
    1 5/16"1/4"31315A22500000031315A25300000
    1 3/8"1/4"31315A22600000031315A25300000
    1 1/2"1/4"31315A22800000031315A25300000
    1 5/8"1/4"31315A23100000031315A25300000
    1 3/4"1/4"31315A23300000031315A25300000
    2"1/4"31315A23700000031315A25300000
    12 mm1/4"6850A22000003124A8200000
    14 mm1/4"6850A240000031315A25300000
    16 mm1/4"6850A260000031315A25300000
    18 mm1/4"6850A280000031315A25300000
    20 mm1/4"6850A310000031315A25300000
    24 mm1/4"6850A3500000031315A25300000
    26 mm1/4"6850A3700000031315A25300000
    28 mm1/4"6850A3900000031315A25300000
    30 mm1/4"6850A4200000031315A25300000
    32 mm1/4"6850A4400000031315A25300000
     
    Titanium Nitride (TiN)-Coated High-Speed Steel
     
    1" Cutting Depth
    7/16"3/16"8847A71000003124A8100000
    1/2"3/16"8847A11000003124A8100000
    9/16"1/4"8847A120000031315A25200000
    5/8"1/4"8847A130000031315A25200000
    11/16"1/4"8847A140000031315A25200000
    3/4"1/4"8847A1500000———0
    13/16"1/4"8847A160000031315A25200000
    7/8"1/4"8847A170000031315A25200000
    15/16"1/4"8847A180000031315A25200000
    1"1/4"8847A190000031315A25200000
    1 1/16"1/4"8847A210000031315A25200000
    1 1/8"1/4"8847A220000031315A25200000
    1 3/16"1/4"8847A2300000031315A25200000
    1 1/4"1/4"8847A2400000031315A25200000
    1 5/16"1/4"8847A2500000031315A25200000
    1 3/8"1/4"8847A2600000031315A25200000
    1 1/2"1/4"8847A2800000031315A25200000
    1 5/8"1/4"8847A3100000031315A25200000
    1 3/4"1/4"8847A3300000031315A25200000
    2"1/4"8847A3700000031315A25200000
     
    2" Cutting Depth
    7/16"3/16"8847A72000003124A8200000
    1/2"3/16"8847A41000003124A8200000
    9/16"1/4"8847A420000031315A25300000
    5/8"1/4"8847A430000031315A25300000
    11/16"1/4"8847A440000031315A25300000
    3/4"1/4"8847A450000031315A25300000
    13/16"1/4"8847A4600000031315A25300000
    7/8"1/4"8847A4700000031315A25300000
    15/16"1/4"8847A4800000031315A25300000
    1"1/4"8847A4900000031315A25300000
    1 1/16"1/4"8847A5100000031315A25300000
    1 1/8"1/4"8847A5200000031315A25300000
    1 3/16"1/4"8847A5300000031315A25300000
    1 1/4"1/4"8847A5400000031315A25300000
    1 5/16"1/4"8847A5500000031315A25300000
    1 3/8"1/4"8847A5600000031315A25300000
    1 1/2"1/4"8847A5800000031315A25300000
    1 5/8"1/4"8847A6100000031315A25300000
    1 3/4"1/4"8847A6300000031315A25300000
    2"1/4"8847A6700000031315A25300000
     
    Cobalt Steel
     
    1" Cutting Depth
    7/16"3/16"3124A71000003124A8100000
    1/2"3/16"3124A11000003124A8100000
    9/16"1/4"3124A130000031315A25200000
    5/8"1/4"3124A140000031315A25200000
    11/16"1/4"3124A150000031315A25200000
    3/4"1/4"3124A160000031315A25200000
    13/16"1/4"3124A170000031315A25200000
    7/8"1/4"3124A180000031315A25200000
    15/16"1/4"3124A190000031315A25200000
    1"1/4"3124A210000031315A25200000
    1 1/16"1/4"3124A220000031315A25200000
    1 1/8"1/4"3124A2300000031315A25200000
    1 3/16"1/4"3124A2400000031315A25200000
    1 1/4"1/4"3124A2500000031315A25200000
    1 5/16"1/4"3124A2600000031315A25200000
    1 3/8"1/4"3124A2700000031315A25200000
    1 1/2"1/4"3124A2900000031315A25200000
    1 5/8"1/4"3124A3200000031315A25200000
    1 3/4"1/4"3124A3400000031315A25200000
    2"1/4"3124A3800000031315A25200000
     
    2" Cutting Depth
    7/16"3/16"3124A73000003124A8200000
    1/2"3/16"3124A39000003124A8200000
    9/16"1/4"3124A430000031315A25300000
    5/8"1/4"3124A440000031315A25300000
    11/16"1/4"3124A450000031315A25300000
    3/4"1/4"3124A460000031315A25300000
    13/16"1/4"3124A4700000031315A25300000
    7/8"1/4"3124A4800000031315A25300000
    15/16"1/4"3124A4900000031315A25300000
    1"1/4"3124A5100000031315A25300000
    1 1/16"1/4"3124A5200000031315A25300000
    1 1/8"1/4"3124A5300000031315A25300000
    1 3/16"1/4"3124A5400000031315A25300000
    1 1/4"1/4"3124A5500000031315A25300000
    1 5/16"1/4"3124A5600000031315A25300000
    1 3/8"1/4"3124A5700000031315A25300000
    1 1/2"1/4"3124A5900000031315A25300000
    1 5/8"1/4"3124A6200000031315A25300000
    1 3/4"1/4"3124A6400000031315A25300000
    2"1/4"3124A6800000031315A25300000
     
    Carbide-Tipped Steel
     
    2" Cutting Depth
    1/2"3/16"3124A911000003124A8200000
    9/16"1/4"3124A9120000031315A25300000
    5/8"1/4"3124A9130000031315A25300000
    11/16"5/16"3118A111000003118A14100000
    3/4"5/16"3118A112000003118A14100000
    13/16"5/16"3118A113000003118A14100000
    7/8"5/16"3118A114000003118A14100000
    15/16"5/16"3118A115000003118A14100000
    1"5/16"3118A116000003118A14100000
    1 1/16"5/16"3118A117000003118A14100000
    1 1/8"5/16"3118A1180000003118A14100000
    1 3/16"5/16"3118A1190000003118A14100000
    1 1/4"5/16"3118A1210000003118A14100000
    1 5/16"5/16"3118A1220000003118A14100000
    1 3/8"5/16"3118A1230000003118A14100000
    1 7/16"5/16"3118A1240000003118A14100000
    1 1/2"5/16"3118A1250000003118A14100000
    1 9/16"5/16"3118A1260000003118A14100000
    1 5/8"5/16"3118A1270000003118A14100000
    1 3/4"5/16"3118A1290000003118A14100000
    1 13/16"5/16"3118A1310000003118A14100000
    1 15/16"5/16"3118A1330000003118A14100000
    2"5/16"3118A1340000003118A14100000
     
    Hollow-Core Cutter Arbor Adapters
    You can also pair the cutters with an arbor adapter (sold separately) when using a manual drill press or milling machine.
    For Carbide-Tipped Cutters—Arbor adapters for carbide-tipped steel cutters come with a pilot pin.
    Round Shank—Arbor adapters for a round shank fit a drill chuck or an R8 collet on a milling machine.
    Morse Taper Shank—Arbor adapters for a Morse Taper spindle are for use on a drill press.
    Shank Type
    Machine
    Taper No.
    For Machine
    Spindle Type
    For Machine
    Spindle Taper No.
    Shank
    Dia.
    Overall
    Lg.
    For Shank
    Size
    Each
    For Cobalt Steel and High-Speed Steel
    Round3/4"5 1/8"31315A2540000000
    Morse TaperMorse 26 1/4"31315A25500000
    Morse TaperMorse 36 1/4"31315A251000000
     
    For Carbide-Tipped Steel
    Morse TaperMorse 2160 mm3/4"3118A142000000
    Morse TaperMorse 3190 mm3/4"3118A143000000
     

    Hollow-Core Cutter Kits for Magnetic-Base Drills

    Image of Product. Front orientation. Hollow-Core Cutters. Hollow-Core Cutter Kits for Magnetic-Base Drills.
    Kits include five cutters, a pilot pin, and a hex key. Unlike drill bits, these cut only on the periphery of the hole and produce a solid slug. For use with magnetic-base drills. They're also known as annular cutters. Pilot pins align the cutter and eject the slug. They're also known as ejector pins.
    Cutting
    Dp.
    Each
    High-Speed Steel
    1"31315A3110000000
    2"31315A312000000
     
    Hollow-Core Cutter Arbor Adapters
    You can also pair the cutters with an arbor adapter (sold separately) when using a manual drill press or milling machine.
    Round Shank—Arbor adapters for a round shank fit a drill chuck or an R8 collet on a milling machine.
    Morse Taper Shank—Arbor adapters for a Morse Taper spindle are for use on a drill press.
    Shank Type
    Machine
    Taper No.
    Shank
    Dia.
    Overall
    Lg.
    Each
    For Cobalt Steel and High-Speed Steel
    Round3/4"5 1/8"31315A2540000000
    Morse TaperMorse 26 1/4"31315A25500000
    Morse TaperMorse 36 1/4"31315A251000000
     

    Tap-Size Hollow-Core Cutters for Magnetic-Base Drills

    Image of Product. Front orientation. Hollow-Core Cutters. Tap-Size Hollow-Core Cutters for Magnetic-Base Drills.
    These cutters are perfectly sized for cutting holes that will be tapped later. Use them with magnetic-base drills. Unlike drill bits, these cut only on the periphery of the hole and produce a solid slug. They're also known as annular cutters.
    Hollow-Core Cutter Pilot Pins—Pilot pins align the cutter and eject the slug. They're also known as ejector pins.
    Hollow-Core Cutters
    Hollow-Core
    Cutter Pilot Pins
    Dia.
    For Tap Thread
    Size
    For Pilot
    Pin Dia.
    Each
    Each
    High-Speed Steel
     
    2" Cutting Depth
    27/64"1/2"-13
    3/16"6849A410000003124A82000000
    29/64"1/2"-20
    3/16"6849A42000003124A8200000
    31/64"9/16"-12
    3/16"6849A43000003124A8200000
    17/32"5/8"-11
    3/16"6849A44000003124A8200000
    21/32"3/4"-10
    1/4"6849A450000031315A25300000
    49/64"7/8"-9
    1/4"6849A460000031315A25300000
    51/64"7/8"-14
    1/4"6849A4700000031315A25300000
    59/64"1"-12
    1/4"6849A4800000031315A25300000
    59/64"1"-14
    1/4"6849A4900000031315A25300000
    1 1/32"1 1/8"-12
    1/4"6849A5200000031315A25300000
    1 7/64"1 1/4"-7
    1/4"6849A5300000031315A25300000
    1 11/64"1 1/4"-12
    1/4"6849A5400000031315A25300000
    1 11/32"1 1/2"-6
    1/4"6849A5500000031315A25300000
    1 27/64"1 1/2"-12
    1/4"6849A5600000031315A25300000
    25 mm1 1/8"-7
    1/4"6849A5100000031315A25300000
     
    Hollow-Core Cutter Arbor Adapters
    You can also pair the cutters with an arbor adapter (sold separately) when using a manual drill press or milling machine.
    Round Shank—Arbor adapters for a round shank fit a drill chuck or an R8 collet on a milling machine.
    Morse Taper Shank—Arbor adapters for a Morse Taper spindle are for use on a drill press.
    Shank Type
    Machine
    Taper No.
    Shank
    Dia.
    Overall
    Lg.
    Each
    For Cobalt Steel and High-Speed Steel
    Round3/4"5 1/8"31315A2540000000
    Morse TaperMorse 26 1/4"31315A25500000
    Morse TaperMorse 36 1/4"31315A251000000
     
    back to top