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    50 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, 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.
    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.
    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
     
    Black Oxide
    29 Ga.
    		0.136"
    		2 7/8"1.54"Round
    		0.136"Split
    		Chicago-Latrobe2901A20300000
     
    Titanium Nitride (TiN) Coated
    29 Ga.
    		0.136"
    		2 7/8"1.54"Round
    		0.136"Split
    		Chicago-Latrobe29045A7520000
     
    Uncoated
    29 Ga.
    		0.136"
    		2 7/8"1.54"Round
    		0.136"Standard
    		Viking Norseman Drill30585A420000
     
    Short Length
     
    Black Oxide
    29 Ga.
    		0.136"
    		2"0.73"Round
    		0.136"Split
    		Chicago-Latrobe2896A5420000
     
    Titanium Nitride (TiN) Coated
    29 Ga.
    		0.136"
    		2"0.94"Round
    		0.136"Split
    		Chicago-Latrobe3584A1920000
     
    Uncoated
    29 Ga.
    		0.136"
    		2"0.94"Round
    		0.136"Standard
    		Chicago-Latrobe8947A1820000
     
    Extended Length
     
    Black Oxide
    29 Ga.
    		0.136"
    		5 3/8"2.79"Round
    		0.136"Standard
    		Chicago-Latrobe3096A34200000
     
    Titanium Nitride (TiN) Coated
    29 Ga.
    		0.136"
    		5 3/8"3"Round
    		0.136"Standard
    		Dormer Pramet28965A83300000
     

    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.
    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
     
    Titanium Nitride (TiN) Coated
    29 Ga.
    		0.136"
    		2 7/8"1.75"Round
    		0.136"Split
    		Dormer Pramet27995A64200000
     
    Uncoated
    29 Ga.
    		0.136"
    		2 7/8"1.54"Round
    		0.136"Split
    		Chicago-Latrobe3033A2420000
     
    Short Length
     
    Titanium Nitride (TiN) Coated
    29 Ga.
    		0.136"
    		1 15/16"0.54"Round
    		0.136"Split
    		Dormer Pramet28765A9450000
     
    Uncoated
    29 Ga.
    		0.136"
    		2"0.7"Round
    		0.136"Split
    		Chicago-Latrobe28765A790000
     
    Extended Length
     
    Uncoated
    29 Ga.
    		0.136"
    		5 3/8"2.7"Round
    		0.136"Split
    		Dormer Pramet88555A6300000
     

    Drill Bit Size Gauges

    Image of Product. Front orientation. Drill Bit Size Gauges. For Wire Gauge.

    For Wire

    Gauge

    Measure drill bit sizes with these gauges.
    For Taps—Drills/taps gauges include a tap size conversion chart.
    For System of
    Measurement
    For Use
    With
    For Drill Bit Size
    Wd.
    Ht.
    Thk.
    Material
    Color
    Mounting
    Hole Dia.
    Each
    Wire GaugeDrills/Taps60 Ga., 59 Ga., 58 Ga., 57 Ga., 56 Ga., 55 Ga., 54 Ga., 53 Ga., 52 Ga., 51 Ga., 50 Ga., 49 Ga., 48 Ga., 47 Ga., 46 Ga., 45 Ga., 44 Ga., 43 Ga., 42 Ga., 41 Ga., 40 Ga., 39 Ga., 38 Ga., 37 Ga., 36 Ga., 35 Ga., 34 Ga., 33 Ga., 32 Ga., 31 Ga., 30 Ga., 29 Ga., 28 Ga., 27 Ga., 26 Ga., 25 Ga., 24 Ga., 23 Ga., 22 Ga., 21 Ga., 20 Ga., 19 Ga., 18 Ga., 17 Ga., 16 Ga., 15 Ga., 14 Ga., 13 Ga., 12 Ga., 11 Ga., 10 Ga., 9 Ga., 8 Ga., 7 Ga., 6 Ga., 5 Ga., 4 Ga., 3 Ga., 2 Ga., 1 Ga.2 1/2"6 1/2"5/64"Steel
    		Silver1/8"8986A68000000

    Chip-Clearing Tap and Drill Bit Sets for Through Holes

    Image of Product. Front orientation. Tap and Drill Bit Sets. Chip-Clearing Tap and Drill Bit Sets for Through Holes.
    Also known as gun taps, the taps in these sets have spiral-point flutes that push chips ahead of the tap and out of through holes. Because they don't need to be reversed to prevent buildup, they produce threads more efficiently than standard taps and are suitable for production work. Taps have a square shank for compatibility with tap wrenches and tap holders for drill presses and milling machines. With a plug chamfer, they have 3-5 chamfered cutting threads, so they're suitable for start-to-finish tapping. All taps and drill bits are made of high-speed steel for use on most metal and plastic.
    No. of
    Pieces
    Chamfer
    Type
    Tap Sizes
    Included
    Overall Lg.
    Thread
    Type
    No. of
    Flutes
    Pitch Dia.
    Limit
    Drill Bit Sizes
    Included
    Drill Bit Material
    Container
    Type
    Each
    Uncoated High-Speed Steel Tap
    18Plug6-32
    8-32
    10-24
    10-32
    1/4"-20
    5/16"-18
    3/8"-16
    7/16"-14
    1/2"-13    		2"
    2 1/8"
    2 3/8"
    2 1/2"
    2 23/32"
    2 15/16"
    3 5/32"
    3 3/8"    		UNC, UNF
    		2, 3H327/64"
    5/16"
    36 ga.
    29 ga.
    25 ga.
    21 ga.
    7 ga.
    F
    U    		Black-Oxide High-Speed SteelMetal Case27275A270000000
     

    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
    29 Ga.
    		0.136"
    		2 1/2"1.1"Round
    		0.136"Four Facet
    		Ultra Tool8825A422000000
     
    Titanium Aluminum Nitride (TiAlN) Coated
    29 Ga.
    		0.136"
    		2 1/2"1.4"Round
    		0.136"Four Facet
    		Ultra Tool8879A5100000
     
    Uncoated
    29 Ga.
    		0.136"
    		2 1/2"1.1"Round
    		0.136"Four Facet
    		Ultra Tool2860A4200000
     

    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
     

    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

    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
    29 Ga.
    		0.136"
    		2 7/8"0.73"Round
    		0.136"Split
    		Cleveland3146A20400000
     
    Extended Length
     
    Uncoated
    29 Ga.
    		0.136"
    		6"1.47"Round
    		0.136"Split
    		Dormer Pramet8952A1710000
     

    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
    29 Ga.
    		0.136"
    		6"1.54"Round
    		0.136"Split
    		Chicago-Latrobe3161A4200000
    29 Ga.
    		0.136"
    		12"1.54"Round
    		0.136"Split
    		Chicago-Latrobe3158A14200000
     

    High-Speed Steel Drill Bits for Plastic

    The precision-ground, 60° point penetrates gradually to prevent cracking and chipping. It also reduces heat that can deform the material. Use these bits for drilling into acrylic, laminate, and other plastics. They're made of wear-resistant high-speed steel.
    Jobbers' LengthAbout Jobbers' Length
    Image of Product. Front orientation. Drill Bits. High-Speed Steel Drill Bits for Plastic, Jobbers' Length.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Point
    Angle
    Drill Bit
    Point Type
    Mfr.
    Each
    Uncoated
    29 Ga.
    		0.136"
    		2 7/8"1.12"Round
    		0.136"60°Standard
    		ICS27465A34200000
     

    Carbide-Tipped Drill Bits

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

    Jobbers' 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

    Performance similar to solid carbide but at a lower price point. Like carbide bits, these are stronger than cobalt and high-speed steel and maintain their sharp edges when drilling abrasive material. However, when drilling tough metals like iron and hardened steel, upgrade to carbide for longer life.
    Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit
    Point Type
    Mfr.
    Each
    Jobbers' Length
     
    Uncoated
    29 Ga.
    		0.136"
    		2 7/8"1.5"Round
    		0.136"Split
    		ICS31575A442000000
    29 Ga.
    		0.136"
    		2 7/8"1.65"Round
    		0.136"Standard
    		ICS2940A43200000
     

    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
    29 Ga.
    		0.136"
    		2 7/8"1.5"ParabolicRound
    		0.136"Split
    		Chicago-Latrobe27575A5200000
     
    Titanium Nitride (TiN) Coated
    29 Ga.
    		0.136"
    		2 7/8"1.5"ParabolicRound
    		0.136"Split
    		Chicago-Latrobe29925A9740000
     
    Uncoated
    29 Ga.
    		0.136"
    		2 7/8"1.5"ParabolicRound
    		0.136"Split
    		Dormer Pramet2761A2390000
    29 Ga.
    		0.136"
    		2 7/8"1.54"High HelixRound
    		0.136"Standard
    		Chicago-Latrobe2912A2030000
     

    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
    29 Ga.
    		0.136"
    		2 1/2"0.5"Round
    		0.136"Split
    		Ultra Tool8882A641000000
     
    Uncoated
    29 Ga.
    		0.136"
    		2 1/2"0.5"Round
    		0.136"Four Facet
    		Ultra Tool8944A6800000
     

    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
     
    Uncoated
    29 Ga.
    		0.136"
    		2 1/2"1.1"Round
    		0.136"140°Brad
    		FlutedUltra Tool2828A87000000
     

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

    Jobbers' Length

    Parabolic Flute

    Round Shank

    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.
    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
     
    Uncoated
    29 Ga.
    		0.136"
    		2 3/4"1.47"ParabolicRound
    		0.136"Split
    		Viking Norseman Drill28555A5200000
     

    Quick-Change Hex Shank Drill Taps for Drills and Screwdrivers

    Image of Product. Front orientation. Drill Taps. Quick-Change Hex Shank Drill Taps for Drills and Screwdrivers.
    Save time when you need to change drill taps frequently. The grooved shank snaps directly into drills, power screwdrivers, and other tools that accept a 1/4" hex shank. However, they’re not rated for impact drivers. With a drill bit point to drive into the workpiece, these taps can drill and tap holes in a single step. They’re made of high-speed steel and are for use on most metal and plastic.
    Their spiral flutes keep chips clear by drawing them back toward the tap and out of the hole. All have a plug chamfer with 3-5 chamfered cutting threads, so they’re suitable for start-to-finish tapping.
    Uncoated High-Speed Steel—Uncoated taps are strong enough for most tapping jobs but have the shortest tool life.
    Titanium Nitride (TiN)-Coated High-Speed Steel—Titanium Nitride (TiN) coated taps resist heat and wear better than uncoated taps, letting them last up to twice as long.
    Thread
    Drill Bit
    Plug Chamfer
    Size
    Lg.
    Overall
    Lg.
    Size
    Decimal Size
    Equiv.
    Point
    Angle
    Flute
    Type
    No. of
    Flutes
    Thread
    Type
    Pitch Dia.
    Limit
    Hex Shank
    Size
    Each
    Uncoated High-Speed Steel
    8-32
    		1/2"3 1/8"29 Ga.
    		0.136"118°Spiral2UNC
    		H31/4"3464A13000000
     
    Titanium Nitride (TiN)-Coated High-Speed Steel
    8-32
    		1/2"3 1/8"29 Ga.
    		0.136"118°Spiral2UNC
    		H31/4"3464A11200000
     

    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. Standard. Front orientation. Contains Border. Standard Point. For Metal.

    Jobbers' Length

    Round Shank

    Standard

    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.
    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.
    Type
    Size
    Drill Bit
    Point Type
    Mfr.
    1-11
    12-Up
    Jobbers' Length
     
    Uncoated
    29 Ga.
    		0.136"
    		2 7/8"1.47"Round
    		0.136"Standard
    		Chicago-Latrobe3024A2520000000000
     

    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
    29 Ga.
    		0.136"
    		2 1/2"1.1"Round
    		0.136"Split
    		Ultra Tool3171A87000000
     

    Drill Taps

    Image of Product. Front orientation. Drill Taps. Drill Taps, Spiral Flute.

    Spiral Flute

    Drill holes and cut threads without switching tools. Made of high-speed steel, these taps are for use on most metal and plastic. The square shank is compatible with tap holders for drill presses and milling machines. All have a plug chamfer with 3-5 chamfered cutting threads, so they're suitable for start-to-finish tapping.
    Uncoated High-Speed Steel—Uncoated taps are strong enough for most tapping jobs but have the shortest tool life.
    Titanium Nitride (TiN)-Coated High-Speed Steel—Titanium Nitride (TiN) coated taps resist heat and wear better than uncoated taps, letting them last up to twice as long.
    Spiral Flute—Taps with spiral flutes keep chips clear by drawing them back toward the tap and out of the hole.
    Thread
    Drill Bit
    Plug Chamfer
    Size
    Lg.
    Overall
    Lg.
    Size
    Decimal Size
    Equiv.
    Point
    Angle
    Flute
    Type
    No. of
    Flutes
    Thread
    Type
    Pitch Dia.
    Limit
    Each
    Uncoated High-Speed Steel
    8-32
    		1/2"2 1/8"29 Ga.
    		0.136"110°Spiral2UNC
    		H32748A24000000
    8-36
    		1/2"2 1/8"29 Ga.
    		0.136"110°Spiral2UNF
    		H32748A2500000
     
    Titanium Nitride (TiN)-Coated High-Speed Steel
    8-32
    		1/2"2 1/8"29 Ga.
    		0.136"118°Spiral2UNC
    		H32748A8300000
     

    Short-Flute Carbide-Tipped Drill Bits

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

    Extended Length

    Round Shank

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

    Split

    Our strongest short-flute bits, these have a carbide tip that stays sharp when drilling abrasive materials, such as titanium. The shallow drilling depth makes them less likely to wobble than other bits of the same length, so they stay centered and drill straighter.
    Extended Length—Drill through panels and thick workpieces with our longest bits.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit
    Point Type
    Mfr.
    Each
    Extended Length
     
    Uncoated
    29 Ga.
    		0.136"
    		12"1.66"Round
    		0.136"Split
    		ICS2854A452000000
     

    Hole-Starting Carbide Drill Bits

    Image of Product. Front orientation. Drill Bits. Hole-Starting Carbide Drill Bits, Short Length, Round Shank.
    Image of Specification. Split. Front orientation. Contains Border. Split Point. For Metal.

    Short Length

    Round Shank

    Split

    Harder and more wear resistant than cobalt steel, these carbide bits create an accurate starting place in your workpiece. Cut an indent, then continue drilling with a longer bit. The indent prevents slipping so the final hole is centered and precise. Carbide stays sharp at high temperatures and faster speeds. 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.
    Shank
    140° Point Angle
    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
    29 Ga.
    		0.136"
    		2 1/8"0.41"Round
    		0.136"Split
    		GWS88915A362000000
     

    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 Wire Gauge Drill Bits
    29 Ga.0.1360"1/2"7/16"3/32"Steel
    		8865A13400000
     

    Chip-Clearing Carbide Drill Bits

    Image of Product. Front orientation. Drill Bits. Chip-Clearing Carbide Drill Bits, Jobbers' Length, Parabolic Flute, Round Shank.
    Image of Specification. Standard. Front orientation. Contains Border. Standard Point. For Metal.

    Jobbers' Length

    Parabolic Flute

    Round Shank

    Standard

    The hardest and most wear-resistant bits, the flutes clear chips and improve coolant flow. They prevent clogs and dissipate heat that can damage the bit and the hole. 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 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.
    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.
    Flute
    Type
    Type
    Size
    Drill Bit
    Point Type
    Mfr.
    Each
    Jobbers' Length
     
    Titanium Nitride (TiN) Coated
    29 Ga.
    		0.136"
    		2 29/32"1.56"ParabolicRound
    		0.1358"Standard
    		Guhring8822A52000000
     
    Uncoated
    29 Ga.
    		0.136"
    		2 29/32"1.56"ParabolicRound
    		0.1358"Standard
    		Guhring8822A1200000
     

    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 1-60 and a metal index case60-0.0002" to 0"Precision Ground2952A60000000

    Helical Threaded Insert Assortments with Installation Tools

    Image of Product. Front orientation. Threaded Inserts. Helical Threaded Insert Assortments with Installation Tools.
    Repair damaged threads or create new ones. These convenient assortments include helical inserts, an installation tool for each thread size, a drill bit, and a tap. The inserts are also known as Heli-Coil inserts.
    Pronged—The prong attaches to an installation tool for precise control as you drive inserts in. Remove the prong with a punch or break-off tool before inserting a screw.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.
    No. of Inserts
    Included
    Includes
    Thread
    Spacing
    Drill Bit
    Size
    For Max.
    Hole Dia.
    Each
    Pronged
     
    18-8 Stainless Steel
    365-40 Thread × 0.188" Installed Lg. (12 Each)
    5-40 Thread × 1/4" Installed Lg. (12 Each)
    5-40 Thread × 1/8" Installed Lg. (12 Each)
    Drill Bit
    Installation Tool
    Prong Break-Off Tool
    Through-Hole Tap    		Coarse
    		29 Ga.
    		0.136"91732A9030000000
     

    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
    0.136"-0.0002" to 0"29 Ga.
    		2 7/8"Not RatedRockwell C60 (Extra Hard)Precision Ground3009A24200000
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