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

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

    High-Speed Steel Drill Bits

    Image of Product. Front orientation. Drill Bits. High-Speed Steel Drill Bits, Jobbers' Length, Morse Taper Shank.

    Jobbers' Length

    Morse Taper Shank

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

    Standard

    Our basic drill bits are also the most versatile. Cut holes in a variety of metals, from the softest aluminum to the hardest steel.
    Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.
    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.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit
    Point Type
    Each
    Jobbers' Length
     
    Black Oxide
    3/16"
    0.1875"
    5 3/4"2.21"Morse Taper
    Morse 1Standard
    2929A325000000
    13/64"
    0.2031"
    6"2.44"Morse Taper
    Morse 1Standard
    2929A33100000
    1/4"
    0.25"
    6 1/8"2.5"Morse Taper
    Morse 1Standard
    2929A33400000
    17/64"
    0.2656"
    6 1/4"2.6"Morse Taper
    Morse 1Standard
    2929A33500000
    9/32"
    0.2813"
    6 1/4"2.57"Morse Taper
    Morse 1Standard
    2929A33600000
    5/16"
    0.3125"
    6 3/8"2.65"Morse Taper
    Morse 1Standard
    2929A34300000
    3/8"
    0.375"
    6 3/4"2.93"Morse Taper
    Morse 1Standard
    2929A35200000
    13/32"
    0.4063"
    7"3.01"Morse Taper
    Morse 1Standard
    2929A35400000
    27/64"
    0.4219"
    7 1/4"3.24"Morse Taper
    Morse 1Standard
    2929A35900000
    7/16"
    0.4375"
    7 1/4"3.21"Morse Taper
    Morse 1Standard
    2929A36100000
    29/64"
    0.4531"
    7 1/2"3.44"Morse Taper
    Morse 1Standard
    2929A36200000
    31/64"
    0.4844"
    8 1/4"3.64"Morse Taper
    Morse 2Standard
    2929A36400000
    1/2"
    0.5"
    8 1/4"3.62"Morse Taper
    Morse 2Standard
    2929A36500000
    33/64"
    0.5156"
    8 1/2"3.85"Morse Taper
    Morse 2Standard
    2929A36800000
    17/32"
    0.5313"
    8 1/2"3.82"Morse Taper
    Morse 2Standard
    2929A37200000
    35/64"
    0.5469"
    8 3/4"4.05"Morse Taper
    Morse 2Standard
    2929A37300000
    9/16"
    0.5625"
    8 3/4"4.03"Morse Taper
    Morse 2Standard
    2929A37400000
    37/64"
    0.5781"
    8 3/4"4"Morse Taper
    Morse 2Standard
    2929A37500000
    19/32"
    0.5938"
    8 3/4"3.98"Morse Taper
    Morse 2Standard
    2929A38100000
    39/64"
    0.6094"
    8 3/4"3.96"Morse Taper
    Morse 2Standard
    2929A38200000
    5/8"
    0.625"
    8 3/4"3.93"Morse Taper
    Morse 2Standard
    2929A38300000
    41/64"
    0.6406"
    9"4.16"Morse Taper
    Morse 2Standard
    2929A38400000
    21/32"
    0.6563"
    9"4.14"Morse Taper
    Morse 2Standard
    2929A38500000
    43/64"0.6719"
    9 1/4"4.36"Morse Taper
    Morse 2Standard
    2929A38600000
    11/16"
    0.6875"
    9 1/4"4.34"Morse Taper
    Morse 2Standard
    2929A39200000
    45/64"
    0.7031"
    9 1/2"4.57"Morse Taper
    Morse 2Standard
    2929A39300000
    23/32"
    0.7188"
    9 1/2"4.54"Morse Taper
    Morse 2Standard
    2929A39400000
    47/64"
    0.7344"
    9 3/4"4.77"Morse Taper
    Morse 2Standard
    2929A39500000
    3/4"
    0.75"
    9 3/4"4.75"Morse Taper
    Morse 2Standard
    2929A41100000
    49/64"
    0.7656"
    9 7/8"4.85"Morse Taper
    Morse 2Standard
    2929A41200000
    25/32"
    0.7813"
    9 7/8"4.82"Morse Taper
    Morse 2Standard
    2929A41300000
    51/64"
    0.7969"
    10 3/4"4.93"Morse Taper
    Morse 3Standard
    2929A41400000
    13/16"
    0.8125"
    10 3/4"4.9"Morse Taper
    Morse 3Standard
    2929A41500000
    53/64"
    0.8281"
    10 3/4"4.88"Morse Taper
    Morse 3Standard
    2929A41600000
    27/32"
    0.8438"
    10 3/4"4.85"Morse Taper
    Morse 3Standard
    2929A422000000
    55/64"
    0.8594"
    10 3/4"4.83"Morse Taper
    Morse 3Standard
    2929A423000000
    7/8"
    0.875"
    10"4.81"Morse Taper
    Morse 2Standard
    2929A511000000
    7/8"
    0.875"
    10 3/4"4.81"Morse Taper
    Morse 3Standard
    2929A424000000
    29/32"
    0.9063"
    10 3/4"4.76"Morse Taper
    Morse 3Standard
    2929A426000000
    59/64"
    0.9219"
    10 3/4"4.74"Morse Taper
    Morse 3Standard
    2929A427000000
    15/16"
    0.9375"
    10 3/4"4.71"Morse Taper
    Morse 3Standard
    2929A433000000
    31/32"
    0.9688"
    11"4.92"Morse Taper
    Morse 3Standard
    2929A435000000
    63/64"
    0.9844"
    11"4.89"Morse Taper
    Morse 3Standard
    2929A436000000
    1"
    1"
    11"4.87"Morse Taper
    Morse 3Standard
    2929A442000000
    1 1/64"
    1.0156"
    11 1/8"4.97"Morse Taper
    Morse 3Standard
    2929A443000000
    1 1/32"
    1.0313"
    11 1/8"4.95"Morse Taper
    Morse 3Standard
    2929A444000000
    1 1/16"
    1.0625"
    11 1/4"5.03"Morse Taper
    Morse 3Standard
    2929A446000000
    1 1/8"
    1.125"
    11 3/4"5.43"Morse Taper
    Morse 3Standard
    2929A512000000
    1 1/8"
    1.125"
    12 3/4"5.43"Morse Taper
    Morse 4Standard
    2929A451000000
    1 3/16"
    1.1875"
    13"5.59"Morse Taper
    Morse 4Standard
    2929A456000000
    1 1/4"
    1.25"
    12 1/2"6"Morse Taper
    Morse 3Standard
    2929A514000000
    1 1/4"
    1.25"
    13 1/2"6"Morse Taper
    Morse 4Standard
    2929A461000000
    1 5/16"
    1.3125"
    14 1/4"6.65"Morse Taper
    Morse 4Standard
    2929A463000000
    1 11/32"
    1.3438"
    14 3/8"6.73"Morse Taper
    Morse 4Standard
    2929A464000000
    1 3/8"
    1.375"
    14 1/2"6.81"Morse Taper
    Morse 4Standard
    2929A465000000
    1 7/16"
    1.4375"
    14 3/4"6.96"Morse Taper
    Morse 4Standard
    2929A467000000
    1 1/2"
    1.5"
    15"7.12"Morse Taper
    Morse 4Standard
    2929A469000000
    1 9/16"
    1.5625"
    16 5/8"7.28"Morse Taper
    Morse 5Standard
    2929A612000000
    1 3/4"
    1.75"
    16 1/4"7.75"Morse Taper
    Morse 4Standard
    2929A516000000
    1 3/4"
    1.75"
    17 1/8"7.5"Morse Taper
    Morse 5Standard
    2929A618000000
    1 7/8"
    1.875"
    17 3/8"7.56"Morse Taper
    Morse 5Standard
    2929A623000000
    2"
    2"
    16 5/8"7.62"Morse Taper
    Morse 4Standard
    2929A517000000
    2"
    2"
    17 3/8"7.37"Morse Taper
    Morse 5Standard
    2929A627000000
    8.5 mm
    0.3346"
    156 mm58 mmMorse Taper
    Morse 1Standard
    3070A13500000
    10.0 mm0.3937"
    168 mm67 mmMorse Taper
    Morse 1Standard
    3070A14200000
    10.2 mm
    0.4016"
    168 mm66.5 mmMorse Taper
    Morse 1Standard
    3070A14300000
    12.0 mm0.4724"
    182 mm77 mmMorse Taper
    Morse 1Standard
    3070A351000000
    12.5 mm
    0.492"
    182 mm50 mmMorse Taper
    Morse 1Standard
    3070A7200000
    12.8 mm
    0.504"
    182 mm51 mmMorse Taper
    Morse 1Standard
    3070A7300000
    13.75 mm
    0.541"
    189 mm55 mmMorse Taper
    Morse 1Standard
    3070A7400000
    14.0 mm0.5512"
    189 mm79.9 mmMorse Taper
    Morse 1Standard
    3070A359000000
    14.5 mm
    0.5709"
    212 mm84.9 mmMorse Taper
    Morse 2Standard
    3070A161000000
    15.0 mm0.5905"
    212 mm83.9 mmMorse Taper
    Morse 2Standard
    3070A162000000
    15.25 mm
    0.6"
    218 mm61 mmMorse Taper
    Morse 2Standard
    3070A7500000
    15.5 mm
    0.6102"
    218 mm89 mmMorse Taper
    Morse 2Standard
    3070A216000000
    16.0 mm0.6299"
    218 mm88 mmMorse Taper
    Morse 2Standard
    3070A164000000
    16.25 mm
    0.64"
    223 mm65 mmMorse Taper
    Morse 2Standard
    3070A7600000
    16.5 mm
    0.6496"
    223 mm92 mmMorse Taper
    Morse 2Standard
    3070A165000000
    17.0 mm0.6693"
    223 mm91 mmMorse Taper
    Morse 2Standard
    3070A166000000
    17.5 mm
    0.689"
    228 mm94.9 mmMorse Taper
    Morse 2Standard
    3070A167000000
    18.0 mm0.7087"
    228 mm93.9 mmMorse Taper
    Morse 2Standard
    3070A168000000
    18.5 mm
    0.728"
    223 mm74 mmMorse Taper
    Morse 2Standard
    3070A7700000
    19.0 mm0.748"
    233 mm97 mmMorse Taper
    Morse 2Standard
    3070A223000000
    19.25 mm
    0.758"
    238 mm77 mmMorse Taper
    Morse 2Standard
    3070A7800000
    19.5 mm
    0.768"
    238 mm78 mmMorse Taper
    Morse 2Standard
    3070A7900000
    20.0 mm0.7874"
    238 mm99.9 mmMorse Taper
    Morse 2Standard
    3070A373000000
    20.5 mm
    0.807"
    243 mm82 mmMorse Taper
    Morse 2Standard
    3070A8100000
    21.0 mm0.8268"
    243 mm102.9 mmMorse Taper
    Morse 2Standard
    3070A326000000
    21.5 mm
    0.846"
    248 mm86 mmMorse Taper
    Morse 2Standard
    3070A8200000
    22.0 mm0.8661"
    248 mm106 mmMorse Taper
    Morse 2Standard
    3070A328000000
    22.5 mm
    0.886"
    253 mm90 mmMorse Taper
    Morse 2Standard
    3070A8300000
    23.0 mm0.906"
    253 mm92 mmMorse Taper
    Morse 2Standard
    3070A84000000
    23.5 mm
    0.925"
    276 mm94 mmMorse Taper
    Morse 3Standard
    3070A85000000
    24.0 mm0.9449"
    281 mm111.9 mmMorse Taper
    Morse 3Standard
    3070A233000000
    24.5 mm
    0.9646"
    281 mm110.9 mmMorse Taper
    Morse 3Standard
    3070A183000000
    25.0 mm0.9842"
    281 mm109.9 mmMorse Taper
    Morse 3Standard
    3070A234000000
    25.5 mm
    1.004"
    286 mm102 mmMorse Taper
    Morse 3Standard
    3070A86000000
    26.0 mm1.0236"
    286 mm113 mmMorse Taper
    Morse 3Standard
    3070A236000000
    26.5 mm
    1.043"
    286 mm106 mmMorse Taper
    Morse 3Standard
    3070A87000000
    27.0 mm1.063"
    291 mm108 mmMorse Taper
    Morse 3Standard
    3070A88000000
    28.0 mm1.102"
    291 mm112 mmMorse Taper
    Morse 3Standard
    3070A89000000
    28.5 mm
    1.122"
    296 mm114 mmMorse Taper
    Morse 3Standard
    3070A91000000
    29.0 mm1.142"
    296 mm116 mmMorse Taper
    Morse 3Standard
    3070A92000000
    29.5 mm
    1.161"
    296 mm118 mmMorse Taper
    Morse 3Standard
    3070A93000000
    30.0 mm1.181"
    296 mm120 mmMorse Taper
    Morse 3Standard
    3070A94000000
    30.5 mm
    1.201"
    301 mm122 mmMorse Taper
    Morse 3Standard
    3070A95000000
    31.0 mm1.22"
    301 mm124 mmMorse Taper
    Morse 3Standard
    3070A96000000
    31.5 mm
    1.24"
    301 mm126 mmMorse Taper
    Morse 3Standard
    3070A97000000
    32.0 mm1.2598"
    334 mm121 mmMorse Taper
    Morse 4Standard
    3070A249000000
    33.0 mm1.299"
    334 mm132 mmMorse Taper
    Morse 4Standard
    3070A98000000
    34.0 mm1.339"
    339 mm136 mmMorse Taper
    Morse 4Standard
    3070A99000000
    36.0 mm1.417"
    344 mm144 mmMorse Taper
    Morse 4Standard
    3070A102000000
    38.0 mm1.496"
    349 mm152 mmMorse Taper
    Morse 4Standard
    3070A103000000
    39.0 mm1.535"
    349 mm156 mmMorse Taper
    Morse 4Standard
    3070A104000000
    40.0 mm1.575"
    349 mm160 mmMorse Taper
    Morse 4Standard
    3070A105000000
    50.0 mm1.969"
    369 mm200 mmMorse Taper
    Morse 4Standard
    3070A108000000
     

    Cobalt Steel Drill Bits

    Image of Product. Front orientation. Drill Bits. Cobalt Steel Drill Bits, Jobbers' Length, Morse Taper Shank.

    Jobbers' Length

    Morse Taper Shank

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

    Split

    Tough and wear resistant, cobalt steel bits last at least twice as long as high-speed steel. They can also run up to 25% faster at higher temperatures without being damaged on hard materials, such as nickel.
    Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.
    Titanium Nitride (TiN) Coated—Drill at higher speeds and last longer than uncoated and oxide-coated bits, especially on tough materials like hardened steel and nickel.
    Uncoated—Polished to eject chips, these are also known as bright finish bits.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit
    Point Type
    Each
    Jobbers' Length
     
    Titanium Nitride (TiN) Coated
    5/8"
    0.625"
    10"4.88"Morse Taper
    Morse 2Split
    3068A3110000000
    3/4"
    0.75"
    10 1/2"5.88"Morse Taper
    Morse 3Split
    3068A312000000
    7/8"
    0.875"
    10 3/4"6.13"Morse Taper
    Morse 3Split
    3068A313000000
     
    Uncoated
    1/4"
    0.25"
    6 1/8"2.88"Morse Taper
    Morse 1Split
    3068A1100000
    17/64"
    0.2656"
    6 1/4"3"Morse Taper
    Morse 1Split
    3068A21100000
    9/32"
    0.2813"
    6 1/4"3"Morse Taper
    Morse 1Split
    3068A1200000
    5/16"
    0.3125"
    6 3/8"3.13"Morse Taper
    Morse 1Split
    3068A1300000
    21/64"
    0.3281"
    6 1/2"3.25"Morse Taper
    Morse 1Split
    3068A21200000
    11/32"
    0.3438"
    6 1/2"3.25"Morse Taper
    Morse 1Split
    3068A1400000
    3/8"
    0.375"
    7 3/8"3.5"Morse Taper
    Morse 2Split
    3068A1500000
    25/64"
    0.3906"
    7 1/2"3.63"Morse Taper
    Morse 2Split
    3068A21300000
    13/32"
    0.4063"
    7 1/2"3.63"Morse Taper
    Morse 2Split
    3068A1600000
    27/64"
    0.4219"
    7 3/4"3.88"Morse Taper
    Morse 2Split
    3068A5600000
    7/16"
    0.4375"
    7 3/4"3.88"Morse Taper
    Morse 2Split
    3068A1700000
    1/2"
    0.5"
    8 1/4"4.38"Morse Taper
    Morse 2Split
    3068A1900000
    17/32"
    0.5313"
    8 1/2"4.63"Morse Taper
    Morse 2Split
    3068A2100000
    9/16"
    0.5625"
    8 3/4"4.88"Morse Taper
    Morse 2Split
    3068A2200000
    5/8"
    0.625"
    8 3/4"4.88"Morse Taper
    Morse 2Split
    3068A24000000
    41/64"
    0.6406"
    9"3.84"Morse Taper
    Morse 2Split
    3068A64000000
    21/32"
    0.6563"
    9 3/4"5.13"Morse Taper
    Morse 3Split
    3068A2500000
    11/16"
    0.6875"
    10"5.38"Morse Taper
    Morse 3Split
    3068A26000000
    3/4"
    0.75"
    10 1/2"5.88"Morse Taper
    Morse 3Split
    3068A28000000
    13/16"
    0.8125"
    10 3/4"6.13"Morse Taper
    Morse 3Split
    3068A31000000
    7/8"
    0.875"
    10 3/4"6.13"Morse Taper
    Morse 3Split
    3068A32000000
    15/16"
    0.9375"
    10 3/4"6.13"Morse Taper
    Morse 3Split
    3068A33000000
    1"
    1"
    11"6.38"Morse Taper
    Morse 3Split
    3068A34000000
    1 1/16"
    1.0625"
    12 1/4"6.63"Morse Taper
    Morse 4Split
    3068A35000000
    1 1/4"
    1.25"
    13 1/2"8.63"Morse Taper
    Morse 4Split
    3068A38000000
     

    Carbide-Tipped Drill Bits for Masonry and Concrete

    Crush rather than cut material so bits don’t jam or overheat while drilling masonry and concrete. The ultra-hard carbide tip breaks masonry into pieces and the widely spaced flutes channel them out of the hole. These bits stay sharp, resisting wear and heat that will dull or break other bits.
    Tapered-Round Shank for Hammer and Rotary Drilling
    Image of Product. Front orientation. Drill Bits. Carbide-Tipped Drill Bits for Masonry and Concrete, Tapered-Round Shank for Hammer and Rotary Drilling.
    These bits fit rotary hammers with a taper-shank chuck. They use simultaneous rotary and hammering action to penetrate material. Also known as A-taper bits and percussion or impact bits.
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Specs. Met
    Each
    Uncoated
     
    Standard Point
    1/4"
    0.25"
    6"4"ANSI B212.152808A31000000
    5/16"
    0.3125"
    6"4"ANSI B212.152808A3200000
    3/8"
    0.375"
    6"4"ANSI B212.152808A3300000
    3/8"
    0.375"
    9"7"ANSI B212.152808A4400000
    3/8"
    0.375"
    12"10"ANSI B212.152808A5500000
    1/2"
    0.5"
    6"4"ANSI B212.152808A3500000
    1/2"
    0.5"
    12"10"ANSI B212.152808A5600000
     
    Drill Bit Shank Adapters
    Image of Product. For Tapered-Round-Shank Drill Bits and SDS Plus Shanks. Front orientation. Drill Bit Shank Adapters. SDS Plus Shank.
    Image of Product. For Tapered-Round-Shank Drill Bits and Spline Shanks. Front orientation. Drill Bit Shank Adapters. Spline Shank.

    For

    Tapered-Round-Shank

    Drill Bits and SDS

    Plus Shanks

    For

    Tapered-Round-Shank

    Drill Bits and Spline

    Shanks

    Shank
    Type
    Overall
    Lg.
    Includes
    Each
    SDS Plus5"Bit Removal Tool2813A53000000
    Spline7 1/4"Bit Removal Tool2813A4700000

    Chip-Clearing Drill Bits for Wood

    Image of Product. Front orientation. Drill Bits. Chip-Clearing Drill Bits for Wood, Round Shank, Tapered-Square Shank.

    Tapered-Square Shank

    Round Shank

    Prevent clogs that wear the bit and slow down drilling. The flutes on these bits have an open design that pulls chips out of the hole faster than standard spiral flutes. Also known as pole or ship auger bits, they are used to cut deep holes through lumber, railroad ties, and utility poles.
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Shank
    Size
    Drill Bit
    Point Type
    Each
    Uncoated
     
    Round Shank/Tapered-Square Shank
    3/8"
    0.375"
    18"12"3/8"Screw
    2878A11000000
    1/2"
    0.5"
    18"12"3/8"Screw
    2878A1300000
    9/16"
    0.5625"
    18"12"3/8"Screw
    2878A1400000
    5/8"
    0.625"
    18"12"3/8"Screw
    2878A1500000
    3/4"
    0.75"
    18"12"5/16"Screw
    2878A1700000
    7/8"
    0.875"
    18"12"5/16"Screw
    2878A1900000
    1"
    1"
    18"12"5/16"Screw
    2878A2200000
     

    Hollow-Core Cutter Arbor Adapters

    Image of Product. Front orientation. Hollow-Core Cutter Arbor Adapters. Morse Taper Shank.

    Morse

    Taper

    Shank

    Pair these arbor adapters with hollow-core cutters when using a manual drill press or milling machine. Hollow-core cutters are also known as annular cutters.
    Machine
    Taper No.
    Morse Taper
    Dia.
    For Cutter
    Shank Size
    Overall
    Lg.
    For Cutter Material
    Material
    Each
    Morse Taper Shank
    Morse 20.7"3/4"6 1/4"Cobalt Steel, High-Speed SteelHigh-Speed Steel31315A255000000
    Morse 30.938"3/4"6 1/4"Cobalt Steel, High-Speed SteelHigh-Speed Steel31315A251000000
     
    back to top