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About Drill Bits
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Compare material, finish, length class, and decimal size equivalents.
Left-Hand Cobalt Steel Drill Bits
Shank | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equiv. | Overall Lg. | Max. Drilling Dp. | Type | Size | Drill Bit Point Type | Mfr. | Each | |||
Jobbers' Length | |||||||||||
 Round Shank  Split | |||||||||||
Uncoated | |||||||||||
| 1.5 mm | 0.0591" | 48 mm | 22 mm | Round | 1.5 mm | Split | Viking Norseman Drill | 3474A48 | 00000 | ||
| 2.0 mm | 0.0787" | 51 mm | 25 mm | Round | 2 mm | Split | Viking Norseman Drill | 3474A49 | 00000 | ||
| 2.5 mm | 0.0984" | 60 mm | 35 mm | Round | 2.5 mm | Split | Viking Norseman Drill | 3474A51 | 00000 | ||
| 3.0 mm | 0.1181" | 70 mm | 41 mm | Round | 3 mm | Split | Viking Norseman Drill | 3474A52 | 00000 | ||
| 3.5 mm | 0.1378" | 73 mm | 45 mm | Round | 3.5 mm | Split | Viking Norseman Drill | 3474A53 | 00000 | ||
| 4.0 mm | 0.1575" | 83 mm | 54 mm | Round | 4 mm | Split | Viking Norseman Drill | 3474A54 | 00000 | ||
| 4.5 mm | 0.1772" | 86 mm | 56 mm | Round | 4.5 mm | Split | Viking Norseman Drill | 3474A55 | 00000 | ||
| 5.0 mm | 0.1968" | 92 mm | 62 mm | Round | 5 mm | Split | Viking Norseman Drill | 3474A56 | 00000 | ||
| 5.5 mm | 0.2165" | 95 mm | 64 mm | Round | 5.5 mm | Split | Viking Norseman Drill | 3474A57 | 00000 | ||
| 6.0 mm | 0.2362" | 102 mm | 70 mm | Round | 6 mm | Split | Viking Norseman Drill | 3474A58 | 00000 | ||
| 6.5 mm | 0.2559" | 105 mm | 73 mm | Round | 6.5 mm | Split | Viking Norseman Drill | 3474A59 | 00000 | ||
| 7.0 mm | 0.2756" | 105 mm | 73 mm | Round | 7 mm | Split | Viking Norseman Drill | 3474A61 | 00000 | ||
| 7.5 mm | 0.2953" | 111 mm | 78 mm | Round | 7.5 mm | Split | Viking Norseman Drill | 3474A62 | 00000 | ||
| 8.0 mm | 0.315" | 114 mm | 81 mm | Round | 8 mm | Split | Viking Norseman Drill | 3474A63 | 00000 | ||
| 8.5 mm | 0.3346" | 121 mm | 87 mm | Round | 8.5 mm | Split | Viking Norseman Drill | 3474A64 | 00000 | ||
| 9.0 mm | 0.3543" | 124 mm | 89 mm | Round | 9 mm | Split | Viking Norseman Drill | 3474A65 | 00000 | ||
| 9.5 mm | 0.374" | 127 mm | 92 mm | Round | 9.5 mm | Split | Viking Norseman Drill | 3474A66 | 00000 | ||
| 10.0 mm | 0.3937" | 130 mm | 95 mm | Round | 10 mm | Split | Viking Norseman Drill | 3474A67 | 00000 | ||
| 10.5 mm | 0.4134" | 133 mm | 98 mm | Round | 10.5 mm | Split | Viking Norseman Drill | 3474A68 | 00000 | ||
| 11.0 mm | 0.4331" | 140 mm | 103 mm | Round | 11 mm | Split | Viking Norseman Drill | 3474A69 | 00000 | ||
| 11.5 mm | 0.4528" | 143 mm | 106 mm | Round | 11.5 mm | Split | Viking Norseman Drill | 3474A71 | 00000 | ||
| 12.0 mm | 0.4724" | 149 mm | 111 mm | Round | 12 mm | Split | Viking Norseman Drill | 3474A72 | 00000 | ||
| 12.5 mm | 0.4921" | 152 mm | 114 mm | Round | 12.5 mm | Split | Viking Norseman Drill | 3474A73 | 00000 | ||
| 13.0 mm | 0.5118" | 152 mm | 114 mm | Round | 13 mm | Split | Viking Norseman Drill | 3474A74 | 00000 | ||
Maintenance Length | |||||||||||
 Round Shank Split | |||||||||||
Titanium Nitride (TiN) Coated | |||||||||||
| 5/64" | 0.0781" | 2" | 0.88" | Round | 5/64" | Split | Cle-Line | 3474A28 | 0000 | ||
| 7/64" | 0.1094" | 2 1/4" | 0.84" | Round | 7/64" | Split | Cle-Line | 3474A29 | 0000 | ||
| 1/8" | 0.125" | 2 1/4" | 1.06" | Round | 1/8" | Split | Cle-Line | 3474A31 | 0000 | ||
| 5/32" | 0.1563" | 2 5/8" | 1.27" | Round | 5/32" | Split | Cle-Line | 3474A32 | 0000 | ||
| 3/16" | 0.1875" | 2 7/8" | 1.34" | Round | 3/16" | Split | Cle-Line | 3474A33 | 0000 | ||
| 7/32" | 0.2188" | 3 1/8" | 1.42" | Round | 7/32" | Split | Cle-Line | 3474A34 | 0000 | ||
| 1/4" | 0.25" | 3 3/8" | 1.63" | Round | 1/4" | Split | Cle-Line | 3474A35 | 00000 | ||
| 5/16" | 0.3125" | 3 3/4" | 1.97" | Round | 5/16" | Split | Cle-Line | 3474A36 | 00000 | ||
| 3/8" | 0.375" | 4 1/8" | 2.06" | Round | 3/8" | Split | Cle-Line | 3474A37 | 00000 | ||
Titanium Aluminum Nitride (TiAlN) Coated | |||||||||||
| 5/64" | 0.0781" | 2" | 0.88" | Round | 5/64" | Split | Cle-Line | 3474A38 | 0000 | ||
| 7/64" | 0.1094" | 2 1/4" | 0.84" | Round | 7/64" | Split | Cle-Line | 3474A39 | 0000 | ||
| 1/8" | 0.125" | 2 1/4" | 1.06" | Round | 1/8" | Split | Cle-Line | 3474A41 | 0000 | ||
| 5/32" | 0.1563" | 2 5/8" | 1.27" | Round | 5/32" | Split | Cle-Line | 3474A42 | 0000 | ||
| 3/16" | 0.1875" | 2 7/8" | 1.34" | Round | 3/16" | Split | Cle-Line | 3474A43 | 0000 | ||
| 7/32" | 0.2188" | 3 1/4" | 1.42" | Round | 7/32" | Split | Cle-Line | 3474A44 | 00000 | ||
| 1/4" | 0.25" | 3 3/8" | 1.63" | Round | 1/4" | Split | Cle-Line | 3474A45 | 00000 | ||
| 5/16" | 0.3125" | 3 3/4" | 1.97" | Round | 5/16" | Split | Cle-Line | 3474A46 | 00000 | ||
| 3/8" | 0.375" | 4 1/8" | 2.06" | Round | 3/8" | Split | Cle-Line | 3474A47 | 00000 | ||
Uncoated | |||||||||||
| 5/64" | 0.0781" | 2" | 0.88" | Round | 5/64" | Split | Cle-Line | 3474A11 | 0000 | ||
| 7/64" | 0.1094" | 2 1/4" | 0.84" | Round | 7/64" | Split | Cle-Line | 3474A12 | 0000 | ||
| 1/8" | 0.125" | 2 1/4" | 1.06" | Round | 1/8" | Split | Cle-Line | 3474A13 | 0000 | ||
| 5/32" | 0.1563" | 2 5/8" | 1.27" | Round | 5/32" | Split | Cle-Line | 3474A14 | 0000 | ||
| 3/16" | 0.1875" | 2 7/8" | 1.34" | Round | 3/16" | Split | Cle-Line | 3474A15 | 0000 | ||
| 7/32" | 0.2188" | 3 1/8" | 1.42" | Round | 7/32" | Split | Cle-Line | 3474A16 | 0000 | ||
| 1/4" | 0.25" | 3 1/2" | 1.63" | Round | 1/4" | Split | Cle-Line | 3474A17 | 0000 | ||
| 9/32" | 0.2813" | 3 5/8" | 1.7" | Round | 9/32" | Split | Cle-Line | 3474A18 | 00000 | ||
| 19/64" | 0.2969" | 3 5/8" | 1.87" | Round | 19/64" | Split | Cle-Line | 3474A19 | 00000 | ||
| 5/16" | 0.3125" | 3 3/4" | 1.97" | Round | 5/16" | Split | Cle-Line | 3474A21 | 00000 | ||
| 11/32" | 0.3438" | 4" | 1.98" | Round | 11/32" | Split | Cle-Line | 3474A22 | 00000 | ||
| 3/8" | 0.375" | 4 1/8" | 2.06" | Round | 3/8" | Split | Cle-Line | 3474A23 | 00000 | ||
| 13/32" | 0.4063" | 4 3/8" | 2.14" | Round | 13/32" | Split | Cle-Line | 3474A24 | 00000 | ||
| 7/16" | 0.4375" | 4 5/8" | 2.22" | Round | 7/16" | Split | Cle-Line | 3474A25 | 00000 | ||
| 15/32" | 0.4688" | 4 3/4" | 2.23" | Round | 15/32" | Split | Cle-Line | 3474A26 | 00000 | ||
| 1/2" | 0.5" | 5" | 2.31" | Round | 1/2" | Split | Cle-Line | 3474A27 | 00000 | ||
Impact Wrench Left-Hand Cobalt Steel Drill Bits
 |  |
Use high torque to drill pilot holes in broken bolts and seized studs to prep them for extraction. Made with an oversized shank and hardened cobalt steel, these bits are built to handle the power of your impact wrench without snapping, even in large holes and hard materials such as stainless steel. The flutes spiral in the opposite direction of other bits, so they loosen stubborn fasteners as you drill. To use them, set your impact wrench to reverse. Once you have a pilot hole, use the matching extractor (sold separately) to back the fastener out. You may need to punch a starter hole in badly stripped screws before drilling. Also known as reverse-flute bits.
You’ll need a VersaDrive chuck (sold separately) to install these bits into your impact wrench. You can also get chucks for impact drivers and magnetic-base drills (both sold separately). For jobs that don’t require the torque of an impact tool, you can fit these bits directly into a 1/2" chuck on a standard power drill.
Short Length—The most rigid bits for drilling the straightest holes.
Titanium Aluminum Nitride (TiAlN) Coated—The hardest and most wear-resistant coating, especially at high temperatures. These bits are best for hard and abrasive materials, such as iron, titanium, and fiberglass.
Drill Bits | Extractors | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Shank | ||||||||||||||||
Drill Bit Size, mm | Decimal Size Equiv. | Overall Lg. | Max. Drilling Dp. | Type | Size | Drill Bit Point Type | Point Angle | Mfr. | Each | Shank Type | Shank Size | Each | ||||
Short Length | ||||||||||||||||
Titanium Aluminum Nitride (TiAlN) Coated | ||||||||||||||||
| 4 | 0.1575" | 3 27/64" | 1 27/32" | VersaDrive Hex | 7/16" | Split | 135° | Holemaker Technology | 9665N11 | 000000 | VersaDrive Hex | 7/16" | 9685N11 | 000000 | ||
| 6 | 0.2362" | 3 27/64" | 1 27/32" | VersaDrive Hex | 7/16" | Split | 135° | Holemaker Technology | 9665N12 | 00000 | VersaDrive Hex | 7/16" | 9685N12 | 00000 | ||
| 7 | 0.2756" | 3 27/64" | 1 27/32" | VersaDrive Hex | 7/16" | Split | 135° | Holemaker Technology | 9665N13 | 00000 | VersaDrive Hex | 7/16" | 9685N13 | 00000 | ||
| 10 | 0.3937" | 3 27/64" | 1 27/32" | VersaDrive Hex | 7/16" | Split | 135° | Holemaker Technology | 9665N14 | 00000 | VersaDrive Hex | 7/16" | 9685N14 | 00000 | ||
 |
Quick-Change |
 |
Strong-Hold |
These chucks mount directly onto the square drive of your impact wrench. They work with any tool with a VersaDrive hex shank, so you don’t need to swap chucks to use reamers, taps, and other tools.
Quick-Change Pull-Back Tool Release—Require just one hand to load. Push your tool in the chuck until you hear the ball detents click into place. To remove your tool, pull back the collar.
Strong-Hold Push-Forward Tool Release—Hold cutting tools more securely than quick-change chucks. To insert and remove cutting tools, you must push a collar forward. Since impact force drives your cutting tool the opposite way, it can’t come loose from the chuck while you work.
Manganese Phosphate-Coated Steel—The coating on these chucks prevents rust.
For Shank | |||||||||
|---|---|---|---|---|---|---|---|---|---|
For Square Drive Size | Type | Size | Overall Lg. | Material | Includes | Each | |||
Quick-Change Pull-Back Tool Release | |||||||||
| 1/2" | VersaDrive Hex | 7/16" | 2 5/32" | Black-Oxide Steel | Retaining Ring, Retention Pin | 9589N112 | 000000 | ||
Strong-Hold Push-Forward Tool Release | |||||||||
| 3/8" | VersaDrive Hex | 7/16" | 2" | Manganese Phosphate-Coated Steel | Retaining Ring, Retention Pin | 9589N111 | 000000 | ||
| 1/2" | VersaDrive Hex | 7/16" | 2 5/32" | Manganese Phosphate-Coated Steel | Retaining Ring, Retention Pin | 9589N113 | 000000 | ||
| 3/4" | VersaDrive Hex | 7/16" | 2 3/8" | Manganese Phosphate-Coated Steel | Retaining Ring, Retention Pin | 9589N114 | 000000 | ||
 |
Extend your cutting tool’s reach. These extensions attach to your chuck and accept any tool with a VersaDrive hex shank.
