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    66 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, Round Shank.

    Jobbers' Length

    Round Shank

    Image of Product. Front orientation. Drill Bits. High-Speed Steel Drill Bits, Short Length, Round Shank.

    Short Length

    Round Shank

    Image of Product. Front orientation. Drill Bits. High-Speed Steel Drill Bits, Maintenance Length, Round Shank.

    Maintenance Length

    Round Shank

    Image of Product. Front orientation. Drill Bits. High-Speed Steel Drill Bits, Extended Length, Round Shank.

    Extended Length

    Round Shank

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

    Standard

    Split

    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.
    Short Length—The most rigid bits for drilling the straightest holes.
    Maintenance Length—Shorter than jobbers' length, these bits are more rigid for less wobble when drilling hard material. Also known as mechanics’ bits.
    Extended Length—Drill through panels and thick workpieces with our longest bits. Their length is good for creating deep holes but makes them less rigid than other bits. As a result, they are more prone to wobbling or breaking, especially when drilling hard materials.
    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.
    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.
    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 and titanium.
    Uncoated—The most economical option, uncoated bits perform best when used on low-carbon steel and aluminum. Polished to reduce friction, they're also known as bright finish bits.
    Black/Gold Oxide—Like black oxide, this finish adds wear resistance and reduces friction for improved chip flow. Because it’s less prone to flaking off, it offers better rust protection when bits aren't in use.
    Shank
    Each
    Package
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit
    Point Type
    Mfr.
    Each
    Pkg.
    Qty.
    Pkg.
    Jobbers' Length
     
    Black Oxide
    1/16"
    		0.0625"
    		1 7/8"0.78"Round
    		1/16"Split
    		Chicago-Latrobe2901A11100000122901A504000000
     
    Titanium Nitride (TiN) Coated
    1/16"
    		0.0625"
    		1 7/8"0.78"Round
    		1/16"Split
    		Chicago-Latrobe29115A71100001229115A81100000
     
    Titanium Aluminum Nitride (TiAlN) Coated
    1/16"
    		0.0625"
    		1 7/8"0.78"Round
    		1/16"Split
    		Chicago-Latrobe3202A440000123202A2600000
     
    Uncoated
    1/16"
    		0.0625"
    		1 7/8"0.78"Round
    		1/16"Standard
    		Viking Norseman Drill8870A140000128870A11400000
     
    Short Length
     
    Black Oxide
    1/16"
    		0.0625"
    		1 5/8"0.53"Round
    		1/16"Split
    		Chicago-Latrobe2896A120000122896A15200000
     
    Titanium Nitride (TiN) Coated
    1/16"
    		0.0625"
    		1 5/8"0.53"Round
    		1/16"Split
    		Viking Norseman Drill2908A31000062908A1100000
     
    Uncoated
    1/16"
    		0.0625"
    		1 5/8"0.53"Round
    		1/16"Standard
    		Chicago-Latrobe8947A1110000————0
     
    Maintenance Length
     
    Black/Gold Oxide
    1/16"
    		0.0625"
    		1 7/8"0.88"Round
    		1/16"Split
    		Cle-Line87755A8410000————0
     
    Extended Length
     
    Black Oxide
    1/16"
    		0.0625"
    		3"1.65"Round
    		1/16"Standard
    		Chicago-Latrobe29315A1160000————0
     
    Titanium Nitride (TiN) Coated
    1/16"
    		0.0625"
    		3"1.75"Round
    		1/16"Standard
    		Dormer Pramet28965A8120000————0
     
    Uncoated
    1/16"
    		0.0625"
    		3"1.75"Round
    		1/16"Standard
    		Dormer Pramet2939A610000————0
     

    Cobalt Steel Drill Bits

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

    Jobbers' Length

    Round Shank

    Image of Product. Front orientation. Drill Bits. Cobalt Steel Drill Bits, Short Length, Round Shank.

    Short Length

    Round Shank

    Image of Product. Front orientation. Drill Bits. Cobalt Steel Drill Bits, Extended Length, Round Shank.

    Extended Length

    Round 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.
    Short Length—The most rigid bits for drilling the straightest holes.
    Extended Length—Drill through panels and thick workpieces with our longest bits. Their length is good for creating deep holes but makes them less rigid than other bits. As a result, they are more prone to wobbling or breaking, especially when drilling hard materials.
    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.
    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.
    Shank
    Each
    Package
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit
    Point Type
    Mfr.
    Each
    Pkg.
    Qty.
    Pkg.
    Jobbers' Length
     
    Titanium Nitride (TiN) Coated
    1/16"
    		0.0625"
    		1 7/8"0.88"Round
    		1/16"Split
    		Dormer Pramet27995A511000001227995A224000000
     
    Titanium Aluminum Nitride (TiAlN) Coated
    1/16"
    		0.0625"
    		1 3/4"0.69"Round
    		1/16"Split
    		Guhring2753A12300000————0
     
    Uncoated
    1/16"
    		0.0625"
    		1 7/8"0.75"Round
    		1/16"Split
    		Chicago-Latrobe3069A120000————0
     
    Short Length
     
    Titanium Nitride (TiN) Coated
    1/16"
    		0.0625"
    		1 5/8"0.53"Round
    		1/16"Split
    		Chicago-Latrobe2416A110000————0
     
    Uncoated
    1/16"
    		0.0625"
    		1 5/8"0.53"Round
    		1/16"Split
    		Chicago-Latrobe28765A1100001228765A13200000
     
    Extended Length
     
    Uncoated
    1/16"
    		0.0625"
    		3"1.62"Round
    		1/16"Split
    		Dormer Pramet3063A11100000————0
     

    Carbide Drill Bits

    Image of Product. Front orientation. Drill Bits. Carbide Drill Bits, Jobbers' Length, Round Shank.

    Jobbers' Length

    Round Shank

    The hardest and most wear-resistant drill bits you can buy. Carbide bits stay sharp at high temperatures and faster speeds for the best performance on hard and difficult-to-machine materials. 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.
    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 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 materials but won't last as long as coated bits.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit Point
    Type
    Mfr.
    Each
    Jobbers' Length
     
    Titanium Nitride (TiN) Coated
    1/16"
    		0.0625"
    		1 1/2"0.6"Round
    		1/16"Four Facet
    		Ultra Tool27515A34000000
     
    Titanium Aluminum Nitride (TiAlN) Coated
    1/16"
    		0.0625"
    		1 1/2"0.6"Round
    		1/16"Four Facet
    		Ultra Tool8879A1200000
     
    Uncoated
    1/16"
    		0.0625"
    		1 1/2"0.6"Round
    		1/16"Four Facet
    		Ultra Tool2956A6100000
     

    Left-Hand High-Speed Steel Drill Bits

    Image of Product. Side1 orientation. Drill Bits. Left-Hand High-Speed Steel Drill Bits, Jobbers' Length, Round Shank.
    Image of Specification. Split. Front orientation. Contains Border. Split Point. For Metal.

    Jobbers' Length

    Round Shank

    Split

    With flutes that spiral in the opposite direction of other bits, these are primarily used to remove stripped screws. Choose a bit that’s slightly smaller than the diameter of the screw’s head. Set your power tool to rotate in reverse. Slowly drill in the center of the screw head, maintaining constant pressure. As the bit penetrates, it will catch onto the screw and reverse it out of the hole. If the screw is badly stripped, you might need to punch a starter hole. Also known as reverse-flute bits. High-speed steel is the versatile choice for drilling most metals.
    Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.
    Gold Oxide—Like black oxide, this finish adds wear resistance and reduces friction for improved chip flow. Because it’s less prone to flaking off, it offers better rust protection when bits aren't in use.
    Uncoated—The most economical option, uncoated bits perform best when used on low-carbon steel and aluminum. Polished to reduce friction, they're also known as bright finish bits.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit
    Point Type
    Mfr.
    Each
    Jobbers' Length
     
    Gold Oxide
    1/16"
    		0.0625"
    		1 7/8"0.75"Round
    		1/16"Split
    		ICS88055A4100000
     
    Uncoated
    1/16"
    		0.0625"
    		1 7/8"0.75"Round
    		1/16"Split
    		ICS2876A1310000
     

    Quick-Change Hex High-Speed Steel Drill Bits

    Image of Product. Front orientation. Drill Bits. Quick-Change Hex High-Speed Steel Drill Bits, Short Length.

    Short Length

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

    Split

    Save time when you need to change bits frequently. The grooved shank snaps directly into power screwdrivers, impact drivers, and other tools that accept a 1/4" hex shank. High-speed steel bits are good for general purpose drilling in most metals.
    Short Length—The most rigid bits for drilling the straightest holes.
    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
    Mfr.
    Each
    Short Length
     
    Black Oxide
    1/16"
    		0.0625"
    		1 7/8"0.5"Quick-Change Hex
    		1/4"Split
    		Bosch29305A11100000
     

    Expanded-Shank Carbide Drill Bits

    Image of Product. Front orientation. Drill Bits. Expanded-Shank Carbide Drill Bits, Jobbers' Length.
    Image of Specification. Standard. Front orientation. Contains Border. Standard Point. For Metal.

    Jobbers' Length

    Standard

    The shank fits the same-size chuck as standard drill bits, so you can spend less time setting up. Because these bits make very small holes, they’re often used for drilling circuit boards. Carbide bits are the the hardest and most wear resistant. They stay sharp at high temperatures and faster speeds for the best performance on hard and difficult-to-machine materials. Carbide can be brittle, however, so bits require a rigid machine tool holder to prevent breakage and should not be used in hand drilling applications.
    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 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 materials but won't last as long as coated bits.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit Point
    Type
    Mfr.
    Each
    Jobbers' Length
     
    Titanium Nitride (TiN) Coated
    1/16"
    		0.0625"
    		1 1/2"0.38"Expanded Round
    		1/8"Four Facet
    		M. A. Ford6415N113000000
     
    Titanium Aluminum Nitride (TiAlN) Coated
    1/16"
    		0.0625"
    		1 1/2"0.36"Expanded Round
    		1/8"Standard
    		M. A. Ford2598N21300000
     
    Uncoated
    1/16"
    		0.0625"
    		1 1/2"0.38"Expanded Round
    		1/8"Standard
    		M. A. Ford2841A940000
     

    Short-Flute High-Speed Steel Drill Bits

    Image of Product. Front orientation. Drill Bits. Short-Flute High-Speed Steel Drill Bits, Extended Length, Round Shank.

    Extended Length

    Round Shank

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

    Split

    The rigidity of short-length bits without sacrificing reach. The shallow drilling depth makes these less likely to wobble than other bits of the same length, so they stay centered and drill straighter. High-speed steel is good for general purpose drilling in most metals.
    Extended Length—Drill through panels and thick workpieces with our longest 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.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit
    Point Type
    Mfr.
    Each
    Extended Length
     
    Black Oxide
    1/16"
    		0.0625"
    		6"0.8"Round
    		1/16"Split
    		Chicago-Latrobe2986A1200000
    1/16"
    		0.0625"
    		12"0.8"Round
    		1/16"Split
    		Chicago-Latrobe2986A4600000
     

    Tap and Drill Bit Cases

    For Drill Bits
    Image of Product. Front orientation. Tap and Drill Bit Stands. Tap and Drill Bit Cases, For Drill Bits, Steel.

    Steel

    Store and organize drill bits so they stay in good working condition and don't go missing. These cases have individually marked holes for each size in your set.
    Steel—Steel cases have stands that fold in and out. Stand them up when you need them, then fold them back into the slim case for storage inside a workbench drawer.
    For
    Drill Bit
    Overall
    Material
    No.
    of
    Size
    Lg.
    Wd.
    Ht.
    Each
    For Inch, Wire Gauge, Letter Size Drill Bits
     
    For Jobbers' Length
    Steel
    		191/16", 1/2", 1/4", 1/8", 21 Ga., 25 Ga., 37/64", 29 Ga., 3/16", 3/32", 3/8", 5/16", 5/32", 5/64", 7 Ga., 7/16", 7/32", F, U7"4"1 1/4"2961A43000000
     

    Short-Flute Cobalt Steel Drill Bits

    Image of Product. Front orientation. Drill Bits. Short-Flute Cobalt Steel Drill Bits, Jobbers' Length, Round Shank.

    Jobbers' Length

    Round Shank

    Image of Product. Front orientation. Drill Bits. Short-Flute Cobalt Steel Drill Bits, Extended Length, Round Shank.

    Extended Length

    Round Shank

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

    Split

    These bits combine the toughness and wear resistance of cobalt with short flutes for rigidity. The shallow drilling depth makes them less likely to wobble than other bits of the same length, so they stay centered and drill straighter. Cobalt lasts at least twice as long as high-speed steel. It can also run up to 25% faster at higher temperatures without damaging the bit on hard materials such as nickel.
    Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.
    Extended Length—Drill through panels and thick workpieces with our longest 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.
    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
    Mfr.
    Each
    Jobbers' Length
     
    Black Oxide
    1/16"
    		0.0625"
    		1 7/8"0.53"Round
    		1/16"Split
    		Cleveland3146A11200000
     
    Extended Length
     
    Uncoated
    1/16"
    		0.0625"
    		6"0.75"Round
    		1/16"Split
    		Dormer Pramet8934A110000
    1/16"
    		0.0625"
    		12"0.75"Round
    		1/16"Split
    		Dormer Pramet8934A3100000
     

    Carbide Drill Bits for Hardened Steel

    Image of Product. Front orientation. Drill Bits. Carbide Drill Bits for Hardened Steel, Short Length, Round Shank.
    Image of Specification. Split. Front orientation. Contains Border. Split Point. For Metal.

    Short Length

    Round Shank

    Split

    The hardest and most wear-resistant bits with the longest life. Straight flutes withstand the heavy pressure needed to penetrate hardened steel. These bits cut more aggressively and resist stress better than spiral-flute bits. Carbide stays sharp at high temperatures and faster speeds for the best performance on hard and difficult-to-machine materials. It 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.
    Short Length—The most rigid bits for drilling the straightest holes.
    Titanium Nitride (TiN) Coated—Drill at higher speeds and last longer than uncoated bits, especially on materials like hardened steel, iron, and stainless steel.
    Uncoated—Excellent for a range of materials but won't last as long as coated bits.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit Point
    Type
    Mfr.
    Each
    Short Length
     
    Titanium Nitride (TiN) Coated
    1/16"
    		0.0625"
    		1 1/2"0.3"Round
    		1/16"Split
    		Ultra Tool8882A11000000
     
    Uncoated
    1/16"
    		0.0625"
    		1 1/2"0.3"Round
    		1/16"Four Facet
    		Ultra Tool8944A1100000
     

    Drill Bit Guides

    Image of ProductInUse. Front orientation. Contains Annotated, MultipleImages. Drill Bit Guides. Drill Bit Guides.
    Image of Product. Front orientation. Drill Bit Guides. Drill Bit Guides.
    Place these guides on your workpiece to drill precise holes without building a fixture. They'll even work on corners and round surfaces. Lines marked on the side allow you to align your holes accurately. Made of hardened steel, they’re tough enough to withstand frequent use.
    For Drill Bit Size
    For Drill Bit Size Decimal Equiv.
    Lg.
    Wd.
    Ht.
    Material
    Each
    3/64", 1/16", 5/64", 3/32", 7/64", 1/8", 10 Ga., 21 Ga., 25 Ga., 29 Ga., 30 Ga., 33 Ga., 36 Ga., 37 Ga., 38 Ga., 40 Ga., 43 Ga., 45 Ga., 47 Ga., 50 Ga., 53 Ga.0.0469", 0.0595", 0.0625", 0.07", 0.0781", 0.0785", 0.082", 0.089", 0.0938", 0.098", 0.1015", 0.104", 0.1065", 0.1094", 0.113", 0.125", 0.128", 0.136", 0.1495", 0.159", 0.1935"3 5/8"5/8"1/2"Steel
    		9550T17000000

    Carbide Drill Bits for Carbon Fiber, Fiberglass, and Graphite

    Image of Product. Front orientation. Drill Bits. Carbide Drill Bits for Carbon Fiber, Fiberglass, and Graphite, Jobbers' Length.

    Jobbers' Length

    Cut clean holes in abrasive material without fraying or delaminating the surface. Made of carbide, these bits resist wear to retain a sharp edge, even after after hundreds of cuts.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Point
    Angle
    Drill Bit
    Point Type
    Bit
    Style
    Mfr.
    Each
    Jobbers' Length
     
    Diamond Coated
    1/16"
    		0.0625"
    		1 1/2"0.6"Round
    		1/16"118°Split
    		FlutedUltra Tool3162A11000000
     
    Uncoated
    1/16"
    		0.0625"
    		1 1/2"0.6"Round
    		1/16"140°Brad
    		FlutedUltra Tool2828A700000
     

    Drill Bit Size Gauges

    Image of Product. Front orientation. Drill Bit Size Gauges. For Inch.

    For Inch

    Measure drill bit sizes with these gauges.
    For System of
    Measurement
    For Use
    With
    For Drill Bit Size
    Wd.
    Ht.
    Thk.
    Material
    Color
    Mounting
    Hole Dia.
    Each
    InchDrills1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4", 17/64", 9/32", 19/64", 5/16", 21/64", 11/32", 23/64", 3/8", 25/64", 13/32", 27/64", 7/16", 29/64", 15/32", 31/64", 1/2"2 1/2"6 1/2"5/64"Steel
    		Silver1/8"8986A67000000

    Smooth-Finish Carbide Drill Bits

    Image of Product. Front orientation. Drill Bits. Smooth-Finish Carbide Drill Bits, Jobbers' Length, Round Shank.
    Image of Specification. Split. Front orientation. Contains Border. Split Point. For Metal.

    Jobbers' Length

    Round Shank

    Split

    With more cutting edges than other drill bits, these cut continuously and consistently for a smoother finish. They also stay centered to produce holes that are straighter and more accurate. However, since there’s less space between the cutting edges, they don’t clear chips as quickly. Made of carbide, these are the hardest and most wear-resistant drill bits you can buy. They stay sharp at high temperatures and faster speeds for the best performance on hard and difficult-to-machine materials. 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.
    Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.
    Uncoated—Excellent for a range of materials but won't last as long as coated bits.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit
    Point Type
    Mfr.
    Each
    Jobbers' Length
     
    Uncoated
    1/16"
    		0.0625"
    		1 1/2"0.6"Round
    		1/16"Split
    		Ultra Tool3171A31000000
     

    Carbide Drill Bits for Sheet Metal

    Image of Product. Front orientation. Drill Bits. Carbide Drill Bits for Sheet Metal, Short Length, Round Shank.

    Short Length

    Round Shank

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

    Standard

    The hardest and most wear-resistant bits for sheet metal and thin-wall tubing. They have short flutes that make shallow cuts without snagging and deforming the material. Carbide stays sharp at high temperatures and faster speeds than high-speed steel. It 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.
    Short Length—The most rigid bits for drilling the straightest holes.
    Uncoated—Excellent for a range of materials but won't last as long as coated bits.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit
    Point Type
    No. of Drilling
    Ends
    Mfr.
    Each
    Short Length
     
    Uncoated
    1/16"
    		0.0625"
    		1 1/2"0.19"Round
    		1/16"Standard
    		1Ultra Tool8769A21000000
     

    Chip-Clearing High-Speed Steel Drill Bits

    Image of Product. Front orientation. Drill Bits. Chip-Clearing High-Speed Steel Drill Bits, Jobbers' Length, High Helix Flute, Round Shank.

    Jobbers' Length

    High Helix Flute

    Round Shank

    Image of Product. Front orientation. Drill Bits. Chip-Clearing High-Speed Steel Drill Bits, Jobbers' Length, Parabolic Flute, Round Shank.

    Jobbers' Length

    Parabolic Flute

    Round Shank

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

    Standard

    Split

    With flutes that lift chips out of the hole, you don't have to stop drilling to clear these bits manually. They improve coolant flow to dissipate heat and prevent clogs that can damage the bit and ruin the hole. High-speed steel is good for general purpose drilling in most metals.
    High Helix Flute—Less aggressive than parabolic flutes for cleaner cuts in soft metals.
    Parabolic Flute—A U-shaped groove on the flutes cuts faster and clears chips more quickly than high-helix bits, so these are better for drilling deeper holes.
    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.
    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—The most economical option, uncoated bits perform best when used on low-carbon steel and aluminum. Polished to reduce friction, they're also known as bright finish bits.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Flute
    Type
    Type
    Size
    Drill Bit
    Point Type
    Mfr.
    Each
    Jobbers' Length
     
    Black Oxide
    1/16"
    		0.0625"
    		1 3/4"0.65"High HelixRound
    		1/16"Split
    		Dormer Pramet31115A4100000
    1/16"
    		0.0625"
    		1 7/8"0.75"ParabolicRound
    		1/16"Split
    		Chicago-Latrobe29925A110000
     
    Titanium Nitride (TiN) Coated
    1/16"
    		0.0625"
    		1 7/8"0.75"ParabolicRound
    		1/16"Split
    		Chicago-Latrobe29925A510000
     
    Uncoated
    1/16"
    		0.0625"
    		1 7/8"0.75"ParabolicRound
    		1/16"Split
    		Dormer Pramet2754A410000
    1/16"
    		0.0625"
    		1 7/8"0.78"High HelixRound
    		1/16"Standard
    		Chicago-Latrobe2912A1110000
     

    Extensions for Round-Shank Drill Bits

    Image of Product. Front orientation. Drill Bit Extensions. Extensions for Round-Shank Drill Bits, One-Piece Extensions.
    Image of Product. Front orientation. Contains Annotated. Drill Bit Extensions. Extensions for Round-Shank Drill Bits, Two-Piece Extensions.

    One-Piece Extensions

    Two-Piece Extensions

    Attach to the shank of a drill bit to extend its reach.
    One-Piece Extensions—To attach one-piece extensions, insert a drill bit into the extension and tighten the knurled collar.
    Two-Piece Extensions—To attach two-piece extensions, insert a drill bit into the collet, then thread the collet onto the extension and tighten with a wrench.
    For Drill Bit
    Size
    Size Decimal
    Equiv.
    Shank
    Size
    Shank
    Size
    Overall
    Lg.
    OD
    Material
    Each
    For Inch Drill Bits
     
    One-Piece Extensions
    1/16"0.0625"1/16"3/16"4"3/16"Steel
    		2864A245000000
     
    Two-Piece Extensions
    1/16"0.0625"1/16"1/4"4 1/2"5/16"Steel
    		3016A81100000
    1/16"0.0625"1/16"1/4"9 1/2"5/16"Steel
    		3016A83700000
     

    Chip-Clearing Cobalt Steel Drill Bits

    Image of Product. Front orientation. Drill Bits. Chip-Clearing Cobalt Steel Drill Bits, Jobbers' Length, Parabolic Flute, Round Shank.

    Jobbers' Length

    Parabolic Flute

    Round Shank

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

    Split

    Avoid clogs and dissipate heat with cobalt bits that last at least twice as long as high-speed steel. The flutes clear chips to improve coolant flow and prevent damage to the bit and the hole. They also speed up drilling since you don't have to stop to clear the bit manually.
    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.
    Flute
    Type
    Type
    Size
    Drill Bit
    Point Type
    Mfr.
    Each
    Jobbers' Length
     
    Titanium Nitride (TiN) Coated
    1/16"
    		0.0625"
    		1 7/8"0.7"ParabolicRound
    		1/16"Split
    		Viking Norseman Drill3183A4100000
     
    Uncoated
    1/16"
    		0.0625"
    		1 7/8"0.7"ParabolicRound
    		1/16"Split
    		Viking Norseman Drill29925A9110000
     

    Chip-Clearing High-Speed Steel Drill Bits for Aluminum, Brass, and Bronze

    Image of Product. Front orientation. Drill Bits. Chip-Clearing High-Speed Steel Drill Bits for Aluminum, Brass, and Bronze, Jobbers' Length, Low Helix Flute, Round Shank.

    Jobbers' Length

    Low Helix Flute

    Round Shank

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

    Standard

    Designed for soft metals that can gum up other drill bits, wide flutes lift chips out of the hole. This prevents clogs that can weaken and damage the bit and ruin the hole. Also known as slow spiral bits, these are made of versatile high-speed steel.
    Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.
    Uncoated—The most economical option, uncoated bits perform best when used on low-carbon steel and aluminum. Polished to reduce friction, they're also known as bright finish bits.
    Shank
    Each
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Flute
    Type
    Type
    Size
    Drill Bit
    Point Type
    Mfr.
    1-11
    12-Up
    Jobbers' Length
     
    Uncoated
    1/16"
    		0.0625"
    		1 7/8"0.75"Low HelixRound
    		1/16"Standard
    		Chicago-Latrobe2928A2110000000000
     

    Depth-Limiting Drill Stops

    Image of ProductInUse. Front orientation. Drill Stops.
    Ensure identical hole depths every time. Position the collar on your bit and tighten the set screw.
    For Drill
    Bit Size
    For Drill Bit Size
    Decimal Equiv.
    Overall
    Lg.
    OD
    Hex Key Size
    for Set Screw
    Material
    Each
    For Inch Drill Bits
    1/16"0.0625"1/2"3/8"3/32"Steel
    		8865A10100000
     

    Bell-Style Center Drills

    Drill a 60° angled hole while the bell shape bevels the outer edge to form an additional 120° chamfer. The chamfered edge is more gradual and softer than edges created by a standard center drill, so it protects the hole from damage. This added protection is particularly useful when a part will undergo several machining processes or be machined on multiple sides using a live center.
    High-Speed SteelAbout High-Speed Steel
    Image of Product. Front orientation. Center Drills. Bell-Style Center Drills.
    These versatile, wear-resistant center drills cut cleanly in most materials, including plastic, aluminum, and steel.
    60° Countersink Angle—The most common center drill angle. The short and sturdy tip starts holes that perfectly match lathe centers.
    Uncoated—Suitable for most tasks, but won't last as long as coated center drills.
    Dia.
    Uncoated
    Trade
    Size
    Drill Bit
    Size
    Body
    Shank
    Overall
    Lg.
    No. of
    Flutes
    No. of Countersinking
    Ends
    Mfr.
    Each
    60° Countersink Angle
    121/16"
    		3/16"3/16"1 7/8"22Keo2915A7200000
     

    M2 High-Speed Tool Steel Rod Sets

    Image of Product. Front orientation. Steel. M2 High-Speed Tool Steel Rod Sets.
    Supplied in a metal index case with fold-out panels, these rods, also known as drill blanks, have an undersized diameter for machining your own jobbers'-length drill bits. They are hardened for increased abrasion and impact resistance. M2 tool steel offers a nice balance of wear resistance and machinability. It has a high molybdenum content, which allows it to maintain sharp cutting edges even at elevated temperatures.
    Includes
    No. of
    Pieces
    Dia.
    Tolerance
    Mechanical
    Finish
    Each
    Sizes 1/16"-1/2" (×1/64ths increments) and a metal index case29-0.0002" to 0"Precision Ground2952A50000000

    Tight-Tolerance Water-Hardening W1 Tool Steel Rods

    Image of Product. Front orientation. Steel. Tight-Tolerance Water-Hardening W1 Tool Steel Rods.
    Ready for turning in your lathe, these rods are precision ground and held to strict diameter and straightness tolerances. Also known as drill rod. With far less alloy content than other tool steel, W1 is the most machinable we offer. These rods are often used to make hammers, files, and reamers—tools that don't require the dimensional stability of A2 or O1. These rods are also decarb-free, which means any surface flaws created during the manufacturing process have been removed. This makes them even more machinable and leads to better results from heat treating or finishing. Heat treat the surface for extra wear resistance. Or, quench this steel in water to boost its hardness and strength, giving it a sharper, more durable edge for small tools.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Dia.
    Dia. Tolerance
    Drill Bit
    Size
    Fabrication
    Heat
    Treatment
    Yield Strength,
    psi
    Mechanical
    Finish
    Hardness
    Max. Hardness After
    Heat Treatment
    Specs.
    Met
    3 ft.
    Long
    6 ft.
    Long
    0.0625"0.000" to 0.0003"1/16"
    		Hot RolledAnnealed50,000Precision GroundRockwell B95 (Medium)Rockwell C65ASTM A6868890K1130000000000

    Undersized Hardened Multipurpose M2 High-Speed Tool Steel Rods

    Image of Product. Front orientation. Steel. Undersized Hardened Multipurpose M2 High-Speed Tool Steel Rods.
    These rods, also known as drill blanks, have an undersized diameter for machining your own drill bits. They're hardened for increased abrasion and impact resistance. M2 tool steel offers a nice balance of wear resistance and machinability. It has a high molybdenum content, which allows it to maintain sharp cutting edges even at elevated temperatures.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Dia.
    Dia.
    Tolerance
    Drill Bit
    Size
    Lg.
    Yield
    Strength
    Hardness
    Mechanical
    Finish
    Each
    1/16"-0.0002" to 0"1/16"
    		1 5/8"261,000 psiRockwell C60 (Extra Hard)Precision Ground3009A30200000
    1/16"-0.0002" to 0"1/16"
    		1 7/8"Not RatedRockwell C60 (Extra Hard)Precision Ground3009A1140000
    1/16"-0.0002" to 0"1/16"
    		3"261,000 psiRockwell C60 (Extra Hard)Precision Ground3009A3070000
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