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    31 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
    3/8"
    		0.375"
    		6 3/4"2.93"Morse Taper
    		Morse 1Standard
    		2929A352000000
     
    Extended Length
     
    Black Oxide
    23/64"
    		0.3594"
    		6 3/4"3.71"Round
    		23/64"Standard
    		29315A14400000
    3/8"
    		0.375"
    		6 3/4"3.68"Round
    		3/8"Standard
    		29315A14500000
    S
    		0.348"
    		6 3/4"3.72"Round
    		0.348"Standard
    		3110A7100000
    T
    		0.358"
    		6 3/4"3.71"Round
    		0.358"Standard
    		3110A7200000
    U
    		0.368"
    		6 3/4"3.69"Round
    		0.368"Standard
    		3110A7300000
     
    Titanium Nitride (TiN) Coated
    3/8"
    		0.375"
    		6 3/4"4.25"Round
    		3/8"Standard
    		28965A74800000
     
    Uncoated
    3/8"
    		0.375"
    		6 3/4"4.25"Round
    		3/8"Standard
    		2939A7900000
     

    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.
    SDS-Plus Shank for Hammer and Rotary Drilling
    Image of Product. Front orientation. Drill Bits. Carbide-Tipped 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
    9/16"
    		0.5625"
    		6 3/4"4"ANSI B212.158948A29000000
    5/8"
    		0.625"
    		6 3/4"4"ANSI B212.158948A3400000
     

    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
    23/64"
    		0.3594"
    		6 3/4"3.53"Round
    		23/64"Standard
    		29465A27000000
    3/8"
    		0.375"
    		6 3/4"3.5"Round
    		3/8"Standard
    		29465A2800000
     

    Cobalt Steel Drill Bits

    Image of Product. Front orientation. Drill Bits. Cobalt Steel Drill Bits, Extended Length, Round Shank.
    Image of Specification. Split. Front orientation. Contains Border. Split Point. For Metal.

    Extended Length

    Round Shank

    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.
    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
    Extended Length
     
    Uncoated
    3/8"
    		0.375"
    		6 3/4"3.5"Round
    		3/8"Split
    		3063A133000000
     

    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
    3/4"
    		0.75"
    		6 3/4"3 3/4"Round
    		1"Carbide Insert
    		0.224"0.236"2769N2100000002780N1200000
    1 1/8"
    		1.125"
    		6 3/4"3.38"Round
    		1 1/4"Carbide Insert
    		0.331"0.350"2769N260000002780N140000
     
    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
    11/16", 3/4"0.224"3/32"1/8"1/64"Aluminum, Brass, Bronze, Fiberglass, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened SteelChip Breakers2776N15000000102776N2360000000
    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 Breakers2776N1900000102776N523000000
     
    Outer Inserts
     
    Titanium Nitride (TiN)-Coated Carbide
    11/16", 3/4"0.236"3/32"1/8"1/32"Aluminum, Brass, Bronze, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened SteelChip Breakers2776N1600000102776N261000000
    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
     

    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.
    Driver Extension Adapters—Create a tool that’s as long as you need. Attach a driver shaft to a screwdriver, T-handle key, or L-key to extend your reach, or chain multiple shafts together to reach deeply recessed fasteners.
    Driver Shafts
    Driver
    Extension Adapters
    Drive
    Size
    Overall
    Lg.
    Max. Access
    Angle
    Material
    Each
    Each
    For Hex Drives
    1/4"6 3/4"25°Black Phosphate-Coated Steel6972A24000009761N22000000
    6 mm6 3/4"25°Black Phosphate-Coated Steel6972A5400009761N3200000
     

    Screw-Guiding Slotted Bits

    Image of Product. Front orientation. Screwdriver Bits. Screw-Guiding Slotted Bits.
    Drive long slotted screws with zero wobble. A spring-loaded sleeve slips over the screw to keep it straight while you tighten. The sleeve also keeps your fingers off the fastener threads, so you can steer clear of cuts and friction burns. However, since these bits only have two points of contact, they may slip out of the fastener head if you use too much force.
    Quick-Change Hex Shank—Lock these bits directly into power tools. They won't wobble as much as bits paired with an adapter, so they are the best choice for high-precision tasks.
    Steel—Best for dry environments, since moisture will cause these bits to rust.
    Overall
    Drive
    Size
    For Screw Size
    Lg.
    Dia.
    Material
    Each
    For Power Tools
     
    1/4" Quick-Change Hex Shank Size
    0.290"No. 8, No. 9, No. 10
    		6 3/4"0.5"Steel7039A28000000
     

    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
    3/4"0.000" to 0.001"3/4"4 1/2"6 3/4"Equal30°Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, SteelCenter CuttingBall2866A840000000
     
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