System of Measurement System of Measurement |
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Decimal Size Equivalent Decimal Size Equivalent |
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Overall Length Overall Length | Show |
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Overall Length Overall Length | Hide |
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Shank Type Shank Type |
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![]() | Round |
![]() | SDS Plus |
![]() | Quick- Change Hex |
![]() | Morse Taper |
![]() | SDS Max |
![]() | Spline |
For Use On For Use On |
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Length Class Length Class |
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Extended Length |
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Taper Shank Length |
Material Material |
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Bit Style Bit Style |
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Spiral Flute | Straight Flute |
DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Individual/Set Individual/Set |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Finish Finish |
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For Use With For Use With |
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Flute Direction Flute Direction |
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Right Hand |
REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Drill Bit Decimal Size Equivalents
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About Drill Bits
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About Masonry Drill Bits
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Extended-Length Drill Bits

Access hard-to-reach spots and drill deep holes.
Black-oxide drill bits produce less friction than uncoated drill bits.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
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Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Inch | |||||||||
Black-Oxide High-Speed Steel | |||||||||
13/16" | 0.8125" | 10" | 4.9" | Round | 13/16" | Standard | Steel, Iron, Stainless Steel | 000000000 | 000000 |
7/8" | 0.875" | 10" | 4.81" | Round | 7/8" | Standard | Steel, Iron, Stainless Steel | 000000000 | 00000 |
29/32" | 0.9063" | 10" | 4.76" | Round | 29/32" | Standard | Steel, Iron, Stainless Steel | 000000000 | 00000 |
Extended-Length Carbide-Tipped Drill Bits

Access hard-to-reach spots and drill deep holes. More wear resistant than cobalt steel and high-speed steel, these carbide-tipped bits maintain a sharper, harder edge at high temperatures for excellent performance on abrasive material, such as plastic. Because they aren’t as brittle as solid carbide bits, they can be used in less rigid setups, such as a hand-held drill.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
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Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Inch | |||||||||
Uncoated Carbide-Tipped Steel | |||||||||
13/16" | 0.8125" | 10" | 4.91" | Round | 13/16" | Standard | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 00000000 | 000000 |
7/8" | 0.875" | 10" | 4.81" | Round | 7/8" | Standard | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 00000000 | 00000 |
Extended-Length Carbide-Tipped Drill Bits with Coolant Holes

Also known as gun drills, use these bits to drill long, straight holes. A hole in the bit allows coolant to be channeled through the tool for more efficient chip evacuation. More wear resistant than cobalt steel and high-speed steel, these carbide-tipped bits maintain a sharper, harder edge at high temperatures for excellent performance on abrasive material.
For technical drawings and 3-D models, click on a part number.
Shank | ||||||||||
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Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | No. of Coolant Holes | For Use On | Each | |
Inch | ||||||||||
Uncoated Carbide-Tipped Steel | ||||||||||
1/8" | 0.125" | 10" | 7" | Round | 0.7498" | Standard | 1 | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 00000000 | 0000000 |
5/32" | 0.1563" | 10" | 7" | Round | 0.7498" | Standard | 1 | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 00000000 | 000000 |
3/16" | 0.1875" | 10" | 7" | Round | 0.7498" | Standard | 1 | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 00000000 | 000000 |
7/32" | 0.2188" | 10" | 7" | Round | 0.7498" | Standard | 1 | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 00000000 | 000000 |
1/4" | 0.25" | 10" | 7" | Round | 0.7498" | Standard | 1 | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 00000000 | 000000 |
17/64" | 0.2656" | 10" | 7" | Round | 0.7498" | Standard | 1 | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
9/32" | 0.2813" | 10" | 7" | Round | 0.7498" | Standard | 1 | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 00000000 | 000000 |
5/16" | 0.3125" | 10" | 7" | Round | 0.7498" | Standard | 1 | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 00000000 | 000000 |
3/8" | 0.375" | 10" | 7" | Round | 0.7498" | Standard | 2 | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 00000000 | 000000 |
13/32" | 0.4063" | 10" | 7" | Round | 0.7498" | Standard | 2 | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 00000000 | 000000 |
1/2" | 0.5" | 10" | 7" | Round | 0.7498" | Standard | 2 | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 00000000 | 000000 |
High-Speed Steel Morse Taper-Shank Drill Bits

Install the Morse taper shank directly into the tapered spindle on machines such as drill presses and lathes.
For technical drawings and 3-D models, click on a part number.
Morse Taper | ||||||||||
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Size | Decimal Size Equivalent | No. | Dia. | Overall Lg. | Max. Drilling Dp. | Shank Type | Point Style | For Use On | Each | |
Inch | ||||||||||
Black-Oxide High-Speed Steel | ||||||||||
7/8" | 0.875" | 2 | 0.7" | 10" | 4.81" | Morse Taper | Standard | Steel, Iron, Stainless Steel | 00000000 | 0000000 |
Cobalt Steel Morse Taper-Shank Drill Bits

With better heat and wear resistance than high-speed steel, these cobalt steel bits can run up to 25% faster and have a longer tool life. Install the Morse taper shank directly into the tapered spindle on machines such as drill presses and lathes. A split point keeps the bit centered without a pilot hole.
Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated drill bits.
For technical drawings and 3-D models, click on a part number.
Morse Taper | ||||||||||
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Size | Decimal Size Equivalent | No. | Dia. | Overall Lg. | Max. Drilling Dp. | Shank Type | Point Style | For Use On | Each | |
Inch | ||||||||||
Uncoated Cobalt Steel | ||||||||||
11/16" | 0.6875" | 3 | 0.938" | 10" | 5.38" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 000000 |
Titanium-Nitride (TiN) Coated Cobalt Steel | ||||||||||
5/8" | 0.625" | 2 | 0.7" | 10" | 4.88" | Morse Taper | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 000000 |
SDS-Max-Shank Masonry Drill Bits for Rotary Hammers


The SDS-Max shank has three deep slots and two shallow slots for use with SDS-Max-drive rotary hammers. These bits cannot be used with SDS-Plus-drive rotary hammers. Drill holes using simultaneous rotary and hammering action to break masonry material into tiny granules. This type of bit drills faster and penetrates material with less pressure than rotary-only bits. Also known as percussion or impact bits.
For technical drawings and 3-D models, click on a part number.
Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Shank Type | Point Style | Specifications Met | For Use On | Each | |
Inch | |||||||||
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Uncoated Carbide-Tipped Steel | |||||||||
3/8" | 0.375" | 10" | 4" | SDS Max | Standard | ANSI B212.15 | Masonry, Concrete | 0000000 | 000000 |
Spline-Shank Masonry Drill Bits for Rotary Hammers


The shank has 12 splines for use with a spline-drive rotary hammer. Drill holes using simultaneous rotary and hammering action to break masonry material into tiny granules. These bits drill faster and penetrate material with less pressure than rotary-only bits. Also called percussion or impact bits.
For technical drawings and 3-D models, click on a part number.
Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Shank Type | Specifications Met | For Use On | Each | |
Inch—Standard Point | ||||||||
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Uncoated Carbide-Tipped Steel | ||||||||
3/8" | 0.375" | 10" | 4" | Spline | ANSI B212.15 | Masonry, Concrete | 0000000 | 000000 |
SDS-Plus-Shank Masonry Drill Bits for Tapping Screw Installation


Each bit is precisely sized to match the tolerances necessary to achieve maximum holding strength from tapping screws. The SDS-Plus shank has two deep slots and two shallow slots for use with SDS-Plus-drive rotary hammers. These bits cannot be used with SDS-Max-drive rotary hammers.
For technical drawings and 3-D models, click on a part number.
For Screw Size | Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Shank Type | Point Style | For Use On | Each | |
Inch | |||||||||
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Uncoated Carbide-Tipped Steel | |||||||||
3/16" | 3/16" | 0.1875" | 10" | 8" | SDS Plus | Standard | Masonry, Concrete | 0000000 | 000000 |
7/32" | 7/32" | 0.2188" | 10" | 8" | SDS Plus | Standard | Masonry, Concrete | 0000000 | 00000 |
3/8" | 3/8" | 0.375" | 10" | 8" | SDS Plus | Standard | Masonry, Concrete | 0000000 | 00000 |
1/2" | 1/2" | 0.5" | 10" | 8" | SDS Plus | Standard | Masonry, Concrete | 0000000 | 00000 |
1" | 1" | 1" | 10" | 8" | SDS Plus | Standard | Masonry, Concrete | 0000000 | 00000 |
1 1/8" | 1 1/8" | 1.125" | 10" | 8" | SDS Plus | Standard | Masonry, Concrete | 0000000 | 00000 |
Hand Guides for Flexible-Shaft Drill Bits


Use this guide to position flexible-shaft drill bits.
For Drill Bit | |||||
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Material | Shank Type | Shaft Size | Lg. | Each | |
Steel | Round | 3/16", 1/4" | 10" | 000000 | 000000 |
Adjustable-Length Quick-Change Extensions for Hex-Shank Drill Bits

Adjust these extensions to the desired length. They have a quick-change mechanism for fast bit changes. Attach to the shank of a drill bit to extend its reach.
For Drill Bit Shank Size | Shank Size | Overall Lg. | OD | Shank Material | Body Material | Each | |
One Piece | |||||||
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1/4" | 1/4" | 8", 10", 12" | 3/4" | Steel | Aluminum | 0000000 | 000000 |
Fastener-Holding Nutdriver Bits



A mechanism inside the bit holds hex nuts and cap screws in place.
Bits with magnet hold steel fasteners.
Hex shank bits for power tools have a groove in the shank and fit directly into power tools without an adapter. They offer more reach for recessed holes and less wobble compared to a hex shank bit used with an adapter.
For technical drawings and 3-D models, click on a part number.
Overall | |||||||
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Size | Bolt Clearance | Lg. | OD | Fastener-Holding Mechanism | Material | Each | |
1/4" Hex Shank Size for Power Tools | |||||||
1/4" | 1/8" | 10" | 0.438" | Magnet | Steel | 0000000 | 00000 |
Bit Adapters


Use hex-shank bits (also known as insert bits) in drills and powered screwdrivers. These adapters have a groove in the shank to fit in a power-tool chuck.
For technical drawings and 3-D models, click on a part number.
Tight-Clearance Bit Screwdrivers



The offset head can access fasteners in tight spots where there isn't clearance to turn a standard bit driver. A magnet holds bits in place. These tools have a multicomponent ultra-grip handle that provides comfort and the best possible grip for achieving maximum torque. The head can be removed from the handle and used with power drills that accept a 1/4” hex shank.
For Max. Drill | Shaft | Material | |||||||||||||
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For Bit Hex Shank Size | Number of Sizes | Sizes Included | Torque, in.-lbs. | Speed, rpm | Overall Lg. | Lg. | O'all Wd. | Offset Angle | Bit-Holding Mechanism | Shaft | Bit | Handle | Features | Each | |
1/4" | 4 | Phillips: No. 1, No. 2 Slotted: 3/16", 1/4" | 300 | 1,200 | 10" | 4 3/4" | 1" | 105° | Magnet | Steel | Steel | Rubber | Bit storage inside tool | 0000000 | 000000 |
Ratcheting Bit Screwdrivers







A ratchet mechanism turns fasteners more quickly than a standard driver. Insert a bit into the shaft and a magnet holds it in place.
Ultra-grip drivers have a multicomponent handle that provides comfort and the best possible grip for achieving maximum torque.
Shaft | Material | |||||||||||||
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For Bit Hex Shank Size | Number of Sizes | Sizes Included | Overall Lg. | Lg. | O'all Wd. | Bit-Holding Mechanism | Shaft | Bit | Handle | Grip Style | Driver Style | Features | Each | |
1/4" | 10 | Phillips: No. 1, No. 2 Slotted: 3/16", 1/4" Torx: T10, T15 Square: No. 1, No. 2 Pozidriv®: No. 1, No. 2 | 10" | 3" | 3/8" | Magnet | Chrome-Plated Steel | Steel | Plastic | Ultra Grip | Driver | Bit storage inside tool | 0000000 | 000000 |
Arbor Adapters for Milwaukee Hollow-Core Cutters

Morse Taper
Shank

These arbor adapters are required when using Milwaukee hollow-core cutters, also known as annular cutters. They come with a pilot pin, which aligns the cutter and ejects the slug.
Morse Taper | For Bit Shank | ||||||||||||
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Number | Dia. | Shank Dia. | Thread Size | Thread Pitch | Overall Lg. | For Cutter Material | Material | Manufacturer | Manufacturer Model Number | For Manufacturer Model Number | Includes | Each | |
With Morse Taper Shank | |||||||||||||
3 | 0.938" | __ | M18 | 1.5mm | 10" | Carbide-Tipped Steel | Steel | Milwaukee | 49-57-0010 | 4202, 4208-1, 4209-1, 4292-1, 4297-1 | Oil Hose, Oiler, Pilot Pin | 00000000 | 0000000 |
With Straight Shank | |||||||||||||
__ | __ | 3/4" | M18 | 1.5mm | 10" | Carbide-Tipped Steel | Steel | Milwaukee | 49-57-0030 | 4206-1, 4210-1 | Oil Hose, Oiler, Pilot Pin | 00000000 | 000000 |