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    39 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.
    Image of Product. Front orientation. Drill Bits. High-Speed Steel Drill Bits, Extended Length, Round Shank.
    Image of Specification. Standard. Front orientation. Contains Border. Standard Point. For Metal.

    Jobbers' Length

    Morse Taper Shank

    Extended Length

    Round Shank

    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.
    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
    Each
    Jobbers' Length
     
    Black Oxide
    1/4"
    		0.25"
    		6 1/8"2.5"Morse Taper
    		Morse 1Standard
    		2929A334000000
     
    Extended Length
     
    Black Oxide
    15/64"
    		0.2344"
    		6 1/8"3.39"Round
    		15/64"Standard
    		29315A13200000
    1/4"
    		0.25"
    		6 1/8"3.37"Round
    		1/4"Standard
    		29315A13300000
    2 Ga.
    		0.221"
    		6 1/8"3.41"Round
    		0.221"Standard
    		3096A31200000
    1 Ga.
    		0.228"
    		6 1/8"3.4"Round
    		0.228"Standard
    		3096A31100000
    A
    		0.234"
    		6 1/8"3.39"Round
    		0.234"Standard
    		3110A5100000
    B
    		0.238"
    		6 1/8"3.39"Round
    		0.238"Standard
    		3110A5200000
    C
    		0.242"
    		6 1/8"3.38"Round
    		0.242"Standard
    		3110A5300000
    D
    		0.246"
    		6 1/8"3.38"Round
    		0.246"Standard
    		3110A5400000
    E
    		0.25"
    		6 1/8"3.37"Round
    		1/4"Standard
    		3110A5500000
    F
    		0.257"
    		6 1/8"3.49"Round
    		0.257"Standard
    		3110A5600000
     
    Titanium Nitride (TiN) Coated
    15/64"
    		0.2344"
    		6 1/8"3.75"Round
    		15/64"Standard
    		28965A73800000
    1/4"
    		0.25"
    		6 1/8"3.75"Round
    		1/4"Standard
    		28965A73900000
    C
    		0.242"
    		6 1/8"3.75"Round
    		0.242"Standard
    		28965A83700000
     
    Uncoated
    15/64"
    		0.2344"
    		6 1/8"3.75"Round
    		15/64"Standard
    		2939A720000
    1/4"
    		0.25"
    		6 1/8"3.75"Round
    		1/4"Standard
    		2939A730000
     

    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 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.
    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.
    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
     
    Uncoated
    1/4"
    		0.25"
    		6 1/8"2.88"Morse Taper
    		Morse 1Split
    		3068A11000000
     
    Extended Length
     
    Uncoated
    15/64"
    		0.2344"
    		6 1/8"3.28"Round
    		15/64"Split
    		3063A12300000
    1/4"
    		0.25"
    		6 1/8"3.25"Round
    		1/4"Split
    		3063A12400000
    2 Ga.
    		0.221"
    		6 1/8"3.3"Round
    		0.221"Split
    		88555A2200000
    1 Ga.
    		0.228"
    		6 1/8"3.3"Round
    		0.228"Split
    		88555A2100000
     

    Carbide-Tipped Drill Bits

    Image of Product. Front orientation. Drill Bits. Carbide-Tipped Drill Bits, Extended Length, Round Shank.
    Image of Specification. Standard. Front orientation. Contains Border. Standard Point. For Metal.

    Extended Length

    Round Shank

    Standard

    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.
    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.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit
    Point Type
    Each
    Extended Length
     
    Uncoated
    15/64"
    		0.2344"
    		6 1/8"3.16"Round
    		15/64"Standard
    		29465A18000000
    1/4"
    		0.25"
    		6 1/8"3.13"Round
    		1/4"Standard
    		29465A1900000
     

    Anchor Installation Drill Bits for Masonry and Concrete

    A built-in stop ensures the right drilling depth every time so drop-in anchors don't fall too far into the hole. These bits have a carbide tip that resists wear and heat to stay sharp.
    SDS-Plus Shank for Hammer and Rotary Drilling
    Image of Product. Front orientation. Drill Bits. Anchor Installation Drill Bits for Masonry and Concrete, SDS-Plus Shank for Hammer and Rotary Drilling.
    Image of Specification. SDS-Plus Shank. Front orientation. SDS Plus Shank.

    SDS-Plus

    Shank

    The slotted shank fits SDS-Plus-drive rotary hammers, which rotate and hammer 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
    Each
    Uncoated
     
    Standard Point
    5/8"
    		0.625"
    		6 1/8"2 1/16"ANSI B212.152652N7000000
     

    Carbide-Insert Drill Bits

    Image of Product. Shown with Carbide Inserts (Sold Separately). Front orientation. Contains Inset. Drill Bits. Carbide-Insert Drill Bits.

    Shown with Carbide Inserts

    (Sold Separately)

    When you need to drill dozens or even hundreds of holes, use a bit with replaceable carbide inserts. Once the cutting edges wear down, just change the inserts instead of sharpening or throwing the bit away. The holes in the bit channel coolant through the tool for more efficient chip evacuation. Also known as indexable drill bits.
    Each drill bit requires two inserts—one on the inner cutting edge and one on the outer cutting edge. Replacement inserts are sold separately.
    Drill Bits
    Replacement
    Insert Screws
    Shank
    For Insert
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit Point
    Type
    Inner Inscribed
    Circle Dia.
    Outer Inscribed
    Circle Dia.
    Each
    Each
    1"
    		1"
    		6 1/8"3"Round
    		1"Carbide Insert
    		0.331"0.350"2769N2400000002780N1400000
     
    Drill Bit Inserts
    Image of Product. Front orientation. Drill Bit Inserts. Inner Inserts.
    Image of Product. Front orientation. Drill Bit Inserts. Outer Inserts.

    Inner Inserts

    Outer Inserts

    Image of Attribute. Inner Inserts. Front orientation. Contains Annotated, MultipleImages. Drill Bit Inserts. Inner Inserts.
    Image of Attribute. Outer Inserts. Front orientation. Contains Annotated, MultipleImages. Drill Bit Inserts. Outer Inserts.

    Inner Inserts

    Outer Inserts

    Each
    Package
    For Drill
    Bit Size
    IC
    Dia.
    Thk.
    Hole
    Dia.
    Tip
    Radius
    For Use On
    Features
    Each
    Pkg.
    Qty.
    Pkg.
    Inner Inserts
     
    Titanium Aluminum Nitride (TiAlN)-Coated Carbide
    1", 1 1/8"0.331"1/8"1/8"1/64"Aluminum, Brass, Bronze, Fiberglass, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened SteelChip Breakers2776N19000000102776N5230000000
     
    Outer Inserts
     
    Titanium Nitride (TiN)-Coated Carbide
    1", 1 1/8"0.350"1/8"1/8"1/32"Aluminum, Brass, Bronze, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened SteelChip Breakers2776N2100000102776N531000000
     

    High-Speed Steel Drill Bits for Wood Screws

    Image of Product. Front orientation. Drill Bits. High-Speed Steel Drill Bits for Wood Screws.
    Achieve a perfect fit for wood screws with bits that match their exact thread size and diameter. Wear and heat resistant, they're good for soft and hard woods.
    Drill Bit
    Size
    Decimal Size
    Equiv.
    For Screw
    Size
    Overall
    Lg.
    Max. Drilling
    Dp.
    Shank
    Size
    Drill Bit
    Point Type
    Each
    Uncoated
     
    Round Shank
    1/4"
    		0.25"
    		No. 14
    		6 1/8"3 3/4"1/4"Standard
    		30915A83000000
     

    Ball-End Driver Shafts

    Image of ProductInUse. Front orientation. Contains Annotated.
    Image of Product. Front orientation. Driver Shafts. Ball-End Driver Shafts.
    Image of Attribute. Hex. Front orientation. Contains Annotated. For Hex Drives.

    Hex

    Create your own tool by attaching these shafts to a handle, or use with socket wrenches and power tools. They have a ball end that allows angled entry to make good contact with the recess when a standard-tip shaft can’t.
    Drive Size,
    mm
    Overall
    Lg.
    Max. Access
    Angle
    Material
    Each
    For Hex Drives
    5.56 1/8"25°Black Phosphate-Coated Steel6972A5300000
     

    High-Speed Steel Square End Mills for Aluminum, Brass, and Bronze

    Image of Product. Front orientation. End Mills. High-Speed Steel Square End Mills for Aluminum, Brass, and Bronze, 2 Flutes.

    2 Flutes

    With a higher helix angle than standard high-speed steel end mills, these clear more chips and generate less heat, making them good for milling soft material, such as aluminum, brass and bronze. They are center cutting for making plunge cuts into surfaces and have a square-end cut style for milling square slots, pockets, and edges.
    Uncoated High-Speed Steel—Use uncoated end mills for general purpose milling and short production runs.
    2 Flutes—End mills with two flutes provide better chip clearance for high-volume, high-speed plunge, slotting, and roughing cuts.
    Mill
    Dia.
    Dia. Tolerance
    Shank
    Dia.
    Lg. of
    Cut
    Overall
    Lg.
    Flute
    Spacing
    Helix
    Angle
    For Use On
    End Mill Type
    Cut
    Style
    Each
    Uncoated High-Speed Steel
     
    2 Flutes
    5/8"0.000" to 0.003"5/8"4"6 1/8"Equal38°Aluminum, Brass, BronzeCenter CuttingSquare2983A38000000
     

    Cobalt Steel Square End Mills

    Image of Product. Front orientation. End Mills. Cobalt Steel Square End Mills, 4 Flutes.

    4 Flutes

    With better heat and wear resistance than high-speed steel, these cobalt steel end mills can run at higher speeds and provide better performance on hard material, such as iron, hardened steel, titanium, and tool steel. They have a square end for milling square slots, pockets, and edges.
    End mills with fewer flutes provide better chip clearance for high-volume, high-speed plunge, slotting, and roughing cuts; end mills with more flutes provide a finer finish and operate with less vibration when run at high speeds.
    Uncoated Cobalt Steel—Use uncoated end mills for general purpose milling and short production runs.
    Center Cutting—Center-cutting end mills allow plunge cuts into a surface.
    Mill
    Dia.
    Dia. Tolerance
    Shank
    Dia.
    Lg. of
    Cut
    Overall
    Lg.
    Flute
    Spacing
    Helix
    Angle
    For Use On
    End Mill Type
    Cut
    Style
    Each
    Uncoated Cobalt Steel
     
    4 Flutes
    5/8"0.000" to 0.001"5/8"4"6 1/8"Equal30°Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool SteelCenter CuttingSquare2883A51000000
     

    High-Speed Steel Ball End Mills

    Image of ProductInUse. Ball Cut Style. Front orientation. Ball Cut Style. High-Speed Steel Ball End Mills.
    Image of Product. Front orientation. End Mills. High-Speed Steel Ball End Mills, 4 Flutes.

    Ball Cut Style

    4 Flutes

    Use these end mills for general purpose milling in most material, such as aluminum, brass, bronze, iron, and steel. They have a ball end for milling rounded slots, slopes, and contours. All are center cutting, allowing plunge cuts into a surface.
    Uncoated High-Speed Steel—Use uncoated end mills for general purpose milling and short production runs.
    4 Flutes—End mills with four flutes provide a finer finish and operate with less vibration when run at high speeds.
    Mill
    Dia.
    Dia. Tolerance
    Shank
    Dia.
    Lg. of
    Cut
    Overall
    Lg.
    Flute
    Spacing
    Helix
    Angle
    For Use On
    End Mill Type
    Cut
    Style
    Each
    Uncoated High-Speed Steel
     
    4 Flutes
    5/8"0.000" to 0.001"5/8"4"6 1/8"Equal30°Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, SteelCenter CuttingBall2866A83000000
     

    High-Speed Steel Square End Mills

    Image of Product. Front orientation. End Mills. High-Speed Steel Square End Mills, 4 Flutes.

    4 Flutes

    Use these end mills for general purpose milling in most material, such as aluminum, brass, bronze, iron, and steel. They have a square end for milling square slots, pockets, and edges.
    End mills with fewer flutes provide better chip clearance for high-volume, high-speed plunge, slotting, and roughing cuts; end mills with more flutes provide a finer finish and operate with less vibration when run at high speeds.
    Uncoated High-Speed Steel—Use uncoated end mills for general purpose milling and short production runs.
    Titanium Nitride (TiN)-Coated High-Speed Steel—Use titanium nitride (TiN)-coated end mills for demanding, high-speed jobs in hard material as well as for longer production runs. They’re more wear resistant than uncoated end mills, which means they last longer when run at similar speeds.
    Center Cutting—Center-cutting end mills allow plunge cuts into a surface.
    Mill
    Dia.
    Dia. Tolerance
    Shank
    Dia.
    Lg. of
    Cut
    Overall
    Lg.
    Flute
    Spacing
    Helix
    Angle
    For Use On
    End Mill Type
    Cut
    Style
    Each
    Uncoated High-Speed Steel
     
    4 Flutes
    5/8"0.000" to 0.001"5/8"4"6 1/8"Equal30°Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, SteelCenter CuttingSquare3056A34000000
     
    Titanium Nitride (TiN)-Coated High-Speed Steel
     
    4 Flutes
    5/8"0.000" to 0.003"5/8"4"6 1/8"Equal30°Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Tool SteelCenter CuttingSquare8918A13500000
     

    High-Speed Steel Square End Mills with Two Milling Ends

    Image of Product. Front orientation. End Mills. High-Speed Steel Square End Mills with Two Milling Ends, 4 Flutes.

    4 Flutes

    When one end wears out, switch to the opposite end for two times the life of a standard high-speed steel end mill. Made of high-speed steel, these end mills are for general purpose milling in most material, such as aluminum, brass, bronze, iron, and steel. Their square ends make them good for milling square slots, pockets, and edges. All are center cutting, allowing plunge cuts into a surface.
    End mills with fewer flutes provide better chip clearance for high-volume, high-speed plunge, slotting, and roughing cuts; end mills with more flutes provide a finer finish and operate with less vibration when run at high speeds.
    Uncoated High-Speed Steel—Use uncoated end mills for general purpose milling and short production runs.
    Titanium Nitride (TiN)-Coated High-Speed Steel—Use titanium nitride (TiN)-coated end mills for demanding, high-speed jobs in hard material as well as for longer production runs. They’re more wear resistant than uncoated end mills, which means they last longer when run at similar speeds.
    Mill
    Dia.
    Dia. Tolerance
    Shank
    Dia.
    Lg. of
    Cut
    Overall
    Lg.
    Flute
    Spacing
    Helix
    Angle
    For Use On
    End Mill Type
    Cut
    Style
    Each
    Uncoated High-Speed Steel
     
    4 Flutes
    13/16"-0.0025" to 0.0000"7/8"1 7/8"6 1/8"Equal30°Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, SteelCenter CuttingSquare2873A380000000
     
    Titanium Nitride (TiN)-Coated High-Speed Steel
     
    4 Flutes
    13/16"-0.0025" to 0.0000"7/8"1 7/8"6 1/8"Equal30°Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Tool SteelCenter CuttingSquare8912A38000000
     
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