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    44 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
    Mfr.
    Each
    Jobbers' Length
     
    Black Oxide
    5/16"
    		0.3125"
    		6 3/8"2.65"Morse Taper
    		Morse 1Standard
    		Chicago-Latrobe2929A343000000
     
    Extended Length
     
    Black Oxide
    19/64"
    		0.2969"
    		6 3/8"3.55"Round
    		19/64"Standard
    		Chicago-Latrobe29315A13600000
    5/16"
    		0.3125"
    		6 3/8"3.53"Round
    		5/16"Standard
    		Chicago-Latrobe29315A14100000
    L
    		0.29"
    		6 3/8"3.56"Round
    		0.29"Standard
    		Chicago-Latrobe3110A6300000
    M
    		0.295"
    		6 3/8"3.55"Round
    		0.295"Standard
    		Chicago-Latrobe3110A6400000
    N
    		0.302"
    		6 3/8"3.54"Round
    		0.302"Standard
    		Chicago-Latrobe3110A6500000
     
    Titanium Nitride (TiN) Coated
    19/64"
    		0.2969"
    		6 3/8"4"Round
    		19/64"Standard
    		Dormer Pramet28965A74300000
    5/16"
    		0.3125"
    		6 3/8"4"Round
    		5/16"Standard
    		Dormer Pramet28965A74400000
     
    Uncoated
    5/16"
    		0.3125"
    		6 3/8"4"Round
    		5/16"Standard
    		Dormer Pramet2939A7600000
     

    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
    Mfr.
    Each
    Uncoated
     
    Standard Point
    3/16"
    		0.1875"
    		6 3/8"4"ANSI B212.15Tru-Cut8948A1100000
    1/4"
    		0.25"
    		6 3/8"4"ANSI B212.15Tru-Cut8948A130000
     

    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
    Mfr.
    Each
    Jobbers' Length
     
    Uncoated
    5/16"
    		0.3125"
    		6 3/8"3.13"Morse Taper
    		Morse 1Split
    		Republic Drill3068A13000000
     
    Extended Length
     
    Uncoated
    5/16"
    		0.3125"
    		6 3/8"3.37"Round
    		5/16"Split
    		Dormer Pramet3063A12800000
     

    Carbide-Tipped Drill Bits

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

    Extended Length

    Round Shank

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

    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
    Mfr.
    Each
    Extended Length
     
    Uncoated
    5/16"
    		0.3125"
    		6 3/8"3.38"Round
    		5/16"Standard
    		ICS29465A24000000
     

    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
    Mfr.
    Each
    Uncoated
     
    Round Shank
    5/16"
    		0.3125"
    		No. 18, No. 20
    		6 3/8"4"5/16"Standard
    		W. L. Fuller30915A87000000
     

    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.
    Mfr.
    Each
    Each
    11/16"
    		0.687"
    		6 3/8"3.44"Round
    		1"Carbide Insert
    		0.224"0.236"Sandvik Coromant2769N1800000002780N1200000
     
    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
     
    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
     

    Medium Duty Air-Powered Drills

    Image of Product. Front orientation. Drills. Medium Duty Air-Powered Drills, Style A.

    Style A

    More durable than our light duty drills, these are excellent for general purpose drilling jobs.
    Keyed Chuck—Drills with keyed chuck can be tightened with the included key.
    Air Inlet
    Style
    For Max. Bit
    Shank Size
    Max. No-Load Rotational
    Speed, rpm
    Drive Direction
    Chuck
    Type
    Power,
    hp
    Average Air Consumption
    @ Pressure
    Pipe
    Size
    Thread
    Type
    Gender
    Exhaust
    Location
    Overall
    Lg.
    Wt.,
    lb.
    Each
    For Hex and Round Bit Shanks
    A3/8"2,000Clockwise, CounterclockwiseKeyed1/24 ft³/min @ 90 psi1/4
    		NPT
    		FemaleBack6 3/8"2.528495A120000000
     

    Changeable-Pilot Counterbores

    Image of ProductInUse. Shown with Pilot (Sold Separately). Front orientation. Counterbores. Changeable-Pilot Counterbores.

    Shown with Pilot (Sold Separately)

    A popular choice when counterboring for nonstandard screw sizes, this tool creates counterbored holes for screws of various thread diameters. Attach a pilot (sold separately) that matches the diameter of your pilot hole. The pilot centers the counterbore and prevents wobbling to create an accurate recess for the screw head on the first try.
    High-Speed SteelAbout High-Speed Steel
    Image of Product. Front orientation. Counterbores. Changeable-Pilot Counterbores, Round Shank.

    Round Shank

    Durable and wear resistant, these counterbores make accurate cuts in most materials without chipping or cracking.
    Shank
    Uncoated
    Body
    Dia.
    Overall
    Lg.
    For Pilot
    Shank Dia.
    Dia.
    Type
    No. of
    Flutes
    Mfr.
    Each
    1"6 3/8"5/16"3/4"Round
    		3F&D Tool3015A360000000
    1 1/8"6 3/8"5/16"1"Round
    		3F&D Tool3015A38000000
     
    Counterbore Pilots
    Image of Product. Front orientation. Counterbore Pilots.
    Pilot Head
    Dia.
    Pilot
    Lg.
    Each
    Uncoated Carbon Steel
     
    5/16" Diameter Pilot Shank
    3/8"3/8"3103A45000000
    7/16"7/16"3103A4600000
    1/2"1/2"3103A4700000
    5/8"5/8"3103A4900000
    11/16"11/16"3103A500000
    3/4"3/4"3103A5100000
    1"1"3103A5500000
     
    Carbide-Tipped Steel
    Image of Product. Front orientation. Counterbores. Changeable-Pilot Counterbores, Round Shank.

    Round Shank

    The hardest and most wear-resistant counterbores we offer. These bits stay sharper at higher temperatures and faster speeds for the best performance on hard and abrasive materials.
    Shank
    Uncoated
    Body
    Dia.
    Overall
    Lg.
    For Pilot
    Shank Dia.
    Dia.
    Type
    No. of
    Flutes
    Mfr.
    Each
    1"6 3/8"5/16"3/4"Round
    		3Rock River Tool2814A940000000
    1 1/8"6 3/8"5/16"1"Round
    		3Rock River Tool2814A581000000
     
    Counterbore Pilots
    Image of Product. Front orientation. Counterbore Pilots.
    Pilot Head
    Dia.
    Pilot
    Lg.
    Each
    Uncoated Carbon Steel
     
    5/16" Diameter Pilot Shank
    3/8"3/8"3103A45000000
    7/16"7/16"3103A4600000
    1/2"1/2"3103A4700000
    5/8"5/8"3103A4900000
    11/16"11/16"3103A500000
    3/4"3/4"3103A5100000
    1"1"3103A5500000
     

    Impact Flex Socket Adapters

    Convert your impact socket into a flex socket to access fasteners from an angle. Also known as universal joints. These adapters are sturdy, so they’ll withstand the high torque and force of impact tools.
    25° Maximum Access Angle
    Image of Product. Front orientation. Socket Adapters. Impact Flex Socket Adapters, 25° Maximum Access Angle.
    Image of Attribute. Front orientation. Contains Annotated. 25° Maximum Access Angle. Impact Flex Socket Adapters.
    Compatible Retaining Ring ID—Adapters that list a compatible retaining ring ID require a locking retainer. Use with an impact wrench that has a pin-style socket retainer, or use a socket retaining ring with tools that have a hole- or hole-and-ring style socket retainer.
    Socket Adapters
    Retaining Rings
    Square Drive
    Size
    Overall
    Lg.
    Compatible Retaining
    Ring ID
    Material
    Each
    Each
    United States Origin
    1 1/2"6 3/8"2 7/8"Black-Oxide Steel7196A14300000007196A7500000
     

    Impact Wrench Reamers for Hole Alignment

    Driven by the high torque of an impact wrench, these reamers enlarge holes to correct misalignment and overlap faster than with a power drill. The tapered shape fits into narrow holes and makes more contact than straight reamers when removing material. Also known as bridge and car reamers.
    Hex Shank
    Image of Product. Front orientation. Contains Annotated. Reamers. Impact Wrench Reamers for Hole Alignment, Hex Shank, Spiral Flute.

    Spiral Flute

    The shank fits hex impact sockets, so you can use an impact wrench to both ream the hole and install a fastener.
    Spiral Flute—Since these reamers clear chips better than straight flutes, they leave holes with a smoother finish. They're better for holes with breaks in the surface, such as a keyway, because they cut continuously across the breaks instead of moving in and out.
    High-Speed Steel—Durable and wear resistant, these are good for general purpose reaming in most materials.
    Left-Hand Spiral—These reamers push chips downward as they cut, so they're often used in through holes.
    Strong Hold—Magnets on the shank’s end keep these reamers from accidentally falling out of your tool.
    Lg.
    Reamer Dia. (A)
    Reamer Dia.
    (B)
    Material
    Hex Shank
    Size
    Flute
    Overall
    Spiral
    Direction
    Cutting Dia.
    Tolerance
    Performance
    For Use On
    Mfr.
    Each
    Spiral Flute
     
    Inch
    0.6875" (11/16")0.3750"High-Speed Steel
    		1 1/16"4 1/2"6 3/8"Left Hand0" to 0.01"—Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, SteelDrillco3000A28000000
    0.6875" (11/16")0.3750"High-Speed Steel
    		1 1/16"4 1/2"6 3/8"Left Hand0" to 0.01"Strong HoldAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, SteelDrillco3239A15000000
     

    Reamers for Hole Alignment

    Enlarge holes to correct misalignment and overlap. Misaligned holes often have a narrow entry, so the tapered shape is easier to insert and makes more contact to remove the overlapping material. These are also known as bridge and car reamers.
    Round Shank
    Image of Product. Front orientation. Contains Annotated. Reamers. Reamers for Hole Alignment, Round Shank, Spiral Flute.

    Spiral Flute

    Image of Product. Front orientation. Contains Annotated. Reamers. Reamers for Hole Alignment, Round Shank, Spiral Flute, Depth Limiting.

    Spiral Flute

    Depth Limiting

    These reamers fit in the chuck of drill presses, turret lathes, and other machine and power tools, making them the most common shank type.
    Spiral Flute—Since these reamers clear chips better than straight flutes, they leave holes with a smoother finish. They're better for holes with breaks in the surface, such as a keyway, because they cut continuously across the breaks instead of moving in and out.
    High-Speed Steel—Durable and wear resistant, these are good for general purpose reaming in most materials.
    Left-Hand Spiral—These reamers push chips downward as they cut, so they're often used in through holes.
    Depth Limiting—A collar on the shank prevents these reamers from going too deep into material, protecting your tool's chuck from damage.
    Lg.
    Reamer Dia. (A)
    Reamer Dia.
    (B)
    Material
    Flute
    Overall
    Spiral
    Direction
    Cutting Dia.
    Tolerance
    Performance
    For Use On
    Mfr.
    Each
    Spiral Flute
     
    Inch
    0.6250" (5/8")0.3438"High-Speed Steel
    		4 1/4"6 3/8"Left Hand0" to 0.01"—Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, SteelDrillco3089A17000000
    0.6520" (21/32")0.3750"High-Speed Steel
    		4 1/2"6 3/8"Left Hand0" to 0.0005"Depth LimitingAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, SteelICS2743A61100000
    0.6563" (21/32")0.3750"High-Speed Steel
    		4 1/4"6 3/8"Left Hand0" to 0.01"—Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, SteelDrillco3089A1800000
    0.6875" (11/16")0.3750"High-Speed Steel
    		4 1/4"6 3/8"Left Hand0" to 0.01"—Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, SteelDrillco3089A1900000
     

    Cobalt Steel Ball End Mills with Two Milling Ends

    Image of ProductInUse. Ball Cut Style. Front orientation. Ball Cut Style. Cobalt Steel Ball End Mills with Two Milling Ends.
    Image of Product. Front orientation. End Mills. Cobalt Steel Ball End Mills with Two Milling Ends, 4 Flutes.

    Ball Cut Style

    4 Flutes

    When one end wears out, switch to the opposite end for two times the life of a standard cobalt steel end mill. 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. Their ball ends make them good for milling rounded slots, slopes, and contours. All are center cutting, allowing plunge cuts into a surface.
    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
    Mfr.
    Each
    Uncoated Cobalt Steel
     
    4 Flutes
    1"-0.0010" to 0.0010"1"1 7/8"6 3/8"Equal30°Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool SteelCenter CuttingBallMelin Tool3253A240000000
     

    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
    Mfr.
    Each
    Uncoated High-Speed Steel
     
    4 Flutes
    1"-0.0025" to 0.0000"1"1 7/8"6 3/8"Equal30°Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, SteelCenter CuttingSquareCleveland2873A710000000
     
    Titanium Nitride (TiN)-Coated High-Speed Steel
     
    4 Flutes
    1"-0.0025" to 0.0000"1"1 7/8"6 3/8"Equal30°Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Stainless Steel, Steel, Tool SteelCenter CuttingSquareCleveland8912A48000000
     
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