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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Length Class Length Class |
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| Extended Length |
For Use On For Use On |
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Material Material |
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Point Style Point Style |
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| Split |
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| Standard |
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| Screw |
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| Carbide Insert |
Bit Style Bit Style |
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 | Spiral Flute |
 | Open Spiral Flute |
 | Flat Blade |
Shank Type Shank Type |
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| Round | Quick-Change Hex |
Finish Finish |
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Flute Direction Flute Direction |
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| Right Hand |
DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Individual/Set Individual/Set |
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For Screw Size For Screw Size |
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For Drilling Type For Drilling Type |
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Number of Coolant Holes Number of Coolant Holes |
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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 | |||||||||
| 21/64" | 0.3281" | 6 1/2" | 3.63" | Round | 21/64" | Standard | Steel, Iron, Stainless Steel | 000000000 | 000000 |
| 11/32" | 0.3438" | 6 1/2" | 3.6" | Round | 11/32" | Standard | Steel, Iron, Stainless Steel | 000000000 | 00000 |
Letter | |||||||||
Black-Oxide High-Speed Steel | |||||||||
| O | 0.316" | 6 1/2" | 3.65" | Round | 0.316" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| P | 0.323" | 6 1/2" | 3.64" | Round | 0.323" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| Q | 0.332" | 6 1/2" | 3.62" | Round | 0.332" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| R | 0.339" | 6 1/2" | 3.61" | Round | 0.339" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
Extended-Length Cobalt Steel Drill Bits
Access hard-to-reach spots and drill deep holes. 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. The split point keeps the bit centered without a pilot hole.
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 Cobalt Steel | |||||||||
| 21/64" | 0.3281" | 6 1/2" | 3.46" | Round | 21/64" | Split | Steel, Hardened Steel, Iron, Stainless Steel, Nickel | 00000000 | 000000 |
| 11/32" | 0.3438" | 6 1/2" | 3.43" | Round | 11/32" | Split | Steel, Hardened Steel, Iron, Stainless Steel, Nickel | 00000000 | 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 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Inch | |||||||||
Uncoated Carbide-Tipped Steel | |||||||||
| 11/32" | 0.3438" | 6 1/2" | 3.44" | Round | 11/32" | Standard | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 00000000 | 000000 |
Round-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. Use with handheld power drills, drill presses, and hammer drills. The shank has a tang which allows it to fit into a drill press with a tapered spindle.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| For Screw Size | Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Features | For Use On | Each | |
Inch | |||||||||||
Uncoated Carbide-Tipped Steel | |||||||||||
| 1/4" | 3/16" | 0.1875" | 6 1/2" | 5" | Round | 5/32" | Standard | Flat on Shank | Masonry, Concrete | 000000000 | 00000 |
Adjustable-Size Flat-Blade Drill Bits for Wood
Cut a variety of hole sizes with one bit—slide the blade to the desired cutting diameter marked on the bit and then tighten the screw. Bits include two blades, each with a different size range. Use in a drill press; they are not recommended for use with handheld drills. They have a centering point and two cutting edges for boring holes in hard and soft wood. Also known as spade bits.
Shank | |||||||
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| Size | Decimal Size Equivalent | Overall Lg. | Type | Size | Point Style | Each | |
Inch | |||||||
Uncoated Steel | |||||||
| 7/8"-3" | 0.875"-3" | 6 1/2" | Round | 11/32" | Standard | 0000000 | 000000 |
Chip-Clearing Drill Bits for Wood
An open spiral-flute design clears chips quickly, so these bits can bore smooth, deep holes through construction lumber, railroad ties, and utility poles. Also known as pole or ship auger bits.
For technical drawings and 3-D models, click on a part number.
Replaceable Carbide-Insert Drill Bits
Use these bits to drill a large number of holes with high precision. When the cutting edges dull, replace the carbide inserts (sold separately) instead of the entire bit. Each drill bit requires two inserts—one on the inner cutting edge and one on the outer cutting edge. Bits can be used in CNC machines with coolant-through technology; holes in the bit allow coolant to be channeled through the tool for more efficient chip evacuation.
For technical drawings and 3-D models, click on a part number.
Drill Bits | ||||||||||||
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For Insert Inscribed Circle Dia. (IC) | Shank | Replacement Screws | ||||||||||
| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Inner | Outer | For Use On | Type | Size | Each | Each | ||
Steel | ||||||||||||
| 3/4" | 0.75" | 6 1/2" | 2 1/4" | 0.224" | 0.236" | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Aluminum, Brass, Bronze, Fiberglass, Plastic | Round | 1" | 0000000 | 0000000 | 0000000 | 00000 |
| For Drill Bit Size | Inscribed Circle Dia. (IC) | Thick. | Hole Dia. | Tip Radius | For Use On | Features | Each | |
Titanium-Aluminum-Nitride (TiAlN) Coated Carbide | ||||||||
|---|---|---|---|---|---|---|---|---|
| 11/16", 3/4" | 0.224" | 3/32" | 1/8" | 1/64" | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Aluminum, Brass, Bronze, Fiberglass, Plastic | Chip Breakers | 0000000 | 000000 |
| For Drill Bit Size | Inscribed Circle Dia. (IC) | Thick. | Hole Dia. | Tip Radius | For Use On | Features | Each | |
Titanium-Nitride (TiN) Coated Carbide | ||||||||
|---|---|---|---|---|---|---|---|---|
| 11/16", 3/4" | 0.236" | 3/32" | 1/8" | 1/32" | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Aluminum, Brass, Bronze, Plastic | Chip Breakers | 0000000 | 000000 |