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Decimal Size Equivalent Decimal Size Equivalent |
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Maximum Drilling Depth Maximum Drilling Depth | Show |
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Maximum Drilling Depth Maximum Drilling Depth | Hide |
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Length Class Length Class |
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Extended Length |
Bit Style Bit Style |
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Spiral Flute | Straight Flute |
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Point Style Point Style |
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Flute Direction Flute Direction |
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Individual/Set Individual/Set |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Finish Finish |
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For Drilling Type For Drilling Type |
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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.
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 High-Speed Steel | |||||||||
1/4" | 0.25" | 18" | 12.5" | Round | 1/4" | Standard | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
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" | 16" | 12.5" | Round | 0.7498" | Standard | 1 | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 00000000 | 0000000 |
5/32" | 0.1563" | 16" | 12.5" | Round | 0.7498" | Standard | 1 | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 00000000 | 000000 |
3/16" | 0.1875" | 16" | 12.5" | Round | 0.7498" | Standard | 1 | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 00000000 | 000000 |
7/32" | 0.2188" | 16" | 12.5" | Round | 0.7498" | Standard | 1 | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 00000000 | 000000 |
1/4" | 0.25" | 16" | 12.5" | Round | 0.7498" | Standard | 1 | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 00000000 | 000000 |
17/64" | 0.2656" | 16" | 12.5" | Round | 0.7498" | Standard | 1 | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 00000000 | 000000 |
9/32" | 0.2813" | 16" | 12.5" | Round | 0.7498" | Standard | 1 | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 00000000 | 000000 |
5/16" | 0.3125" | 16" | 12.5" | Round | 0.7498" | Standard | 1 | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 00000000 | 000000 |
3/8" | 0.375" | 16" | 12.5" | Round | 0.7498" | Standard | 2 | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 00000000 | 000000 |
13/32" | 0.4063" | 16" | 12.5" | Round | 0.7498" | Standard | 2 | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 00000000 | 000000 |
1/2" | 0.5" | 16" | 12.5" | Round | 0.7498" | Standard | 2 | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
SDS-Max-Shank Hollow Masonry Drill Bits for Dust Containment


When connected to a vacuum, these hollow bits can suck up concrete dust while drilling to help meet OSHA standards for silica dust exposure. They can also be used to clean out holes for installing adhesive anchors. The SDS-Max shank has three deep slots and two shallow slots for use with SDS-Max-drive rotary hammers. They cannot be used with SDS-Plus-drive rotary hammers.
Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Shank Type | Point Style | For Vacuum Hose ID | For Use On | Each | |
Inch | |||||||||
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Titanium-Nitride (TiN) Coated Carbide-Tipped Steel | |||||||||
3/4" | 0.75" | 21" | 12 1/2" | SDS Max | Standard | 1 3/8" | Masonry, Concrete | 000000 | 0000000 |
SDS-Plus-Shank Hollow Masonry Drill Bits for Dust Containment


When connected to a vacuum, these hollow bits can suck up concrete dust while drilling to help meet OSHA standards for silica dust exposure. They can also be used to clean out holes for installing adhesive anchors. The SDS-Plus shank has two deep slots and two shallow slots for use with SDS-Plus-drive rotary hammers. They cannot be used with SDS-Max-drive rotary hammers.
Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Shank Type | Point Style | For Vacuum Hose ID | For Use On | Each | |
Inch | |||||||||
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Titanium-Nitride (TiN) Coated Carbide-Tipped Steel | |||||||||
11/16" | 0.6875" | 18" | 12 1/2" | SDS Plus | Standard | 1 3/8" | Masonry, Concrete | 000000 | 0000000 |
3/4" | 0.75" | 18" | 12 1/2" | SDS Plus | Standard | 1 3/8" | Masonry, Concrete | 000000 | 000000 |