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About Drill Bits
Compare material, finish, length class, and decimal size equivalents.
Short-Flute Cobalt Steel Drill Bits
The short flutes on these jobbers'-length bits provide increased rigidity for drilling straighter holes. Made of cobalt steel, which has better heat and wear resistance than high-speed steel, they can run up to 25% faster and have a longer tool life. A split point keeps the bit centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Shank | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Specifications Met | Each | |
Inch | ||||||||||
Black-Oxide Cobalt Steel | ||||||||||
1/16" | 0.0625" | 1 7/8" | 0.53" | Round | 1/16" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 00000 |
| 5/64" | 0.0781" | 2" | 0.57" | Round | 5/64" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 3/32" | 0.0938" | 2 1/4" | 0.61" | Round | 3/32" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 7/64" | 0.1094" | 2 5/8" | 0.65" | Round | 7/64" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 1/8" | 0.125" | 2 3/4" | 0.69" | Round | 1/8" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 9/64" | 0.1406" | 2 7/8" | 0.73" | Round | 9/64" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 5/32" | 0.1563" | 3 1/8" | 0.77" | Round | 5/32" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 11/64" | 0.1719" | 3 1/4" | 0.8" | Round | 11/64" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 3/16" | 0.1875" | 3 1/2" | 0.84" | Round | 3/16" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 13/64" | 0.2031" | 3 5/8" | 0.88" | Round | 13/64" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 7/32" | 0.2188" | 3 3/4" | 0.92" | Round | 7/32" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 15/64" | 0.2344" | 3 7/8" | 0.96" | Round | 15/64" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 1/4" | 0.25" | 4" | 1" | Round | 1/4" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 17/64" | 0.2656" | 4 1/8" | 1.04" | Round | 17/64" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 9/32" | 0.2813" | 4 1/4" | 1.08" | Round | 9/32" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 19/64" | 0.2969" | 4 3/8" | 1.12" | Round | 19/64" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 00000 |
| 5/16" | 0.3125" | 4 1/2" | 1.16" | Round | 5/16" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 00000 |
| 21/64" | 0.3281" | 4 5/8" | 1.2" | Round | 21/64" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 00000 |
| 11/32" | 0.3438" | 4 3/4" | 1.17" | Round | 11/32" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 00000 |
| 23/64" | 0.3594" | 4 7/8" | 1.21" | Round | 23/64" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 00000 |
| 3/8" | 0.375" | 5" | 1.25" | Round | 3/8" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 00000 |
| 25/64" | 0.3906" | 5 1/8" | 1.29" | Round | 25/64" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 00000 |
| 13/32" | 0.4063" | 5 1/4" | 1.33" | Round | 13/32" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 00000 |
| 27/64" | 0.4219" | 5 3/8" | 1.37" | Round | 27/64" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 00000 |
| 7/16" | 0.4375" | 5 1/2" | 1.41" | Round | 7/16" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 00000 |
| 29/64" | 0.4531" | 5 5/8" | 1.45" | Round | 29/64" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 00000 |
| 15/32" | 0.4688" | 5 3/4" | 1.42" | Round | 15/32" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 00000 |
| 31/64" | 0.4844" | 5 7/8" | 1.46" | Round | 31/64" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 00000 |
| 1/2" | 0.5" | 6" | 1.5" | Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 00000 |
Wire Gauge | ||||||||||
Black-Oxide Cobalt Steel | ||||||||||
| 52 ga. | 0.0635" | 1 7/8" | 0.59" | Round | 0.0635" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 51 ga. | 0.067" | 2" | 0.59" | Round | 0.067" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 50 ga. | 0.07" | 2" | 0.58" | Round | 0.07" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 49 ga. | 0.073" | 2" | 0.58" | Round | 0.073" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 48 ga. | 0.076" | 2" | 0.57" | Round | 0.076" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 47 ga. | 0.0785" | 2" | 0.57" | Round | 0.0785" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 46 ga. | 0.081" | 2 1/8" | 0.63" | Round | 0.081" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 45 ga. | 0.082" | 2 1/8" | 0.63" | Round | 0.082" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 44 ga. | 0.086" | 2 1/8" | 0.62" | Round | 0.086" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 43 ga. | 0.089" | 2 1/4" | 0.62" | Round | 0.089" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 42 ga. | 0.0935" | 2 1/4" | 0.61" | Round | 0.0935" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 41 ga. | 0.096" | 2 3/8" | 0.67" | Round | 0.096" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 40 ga. | 0.098" | 2 3/8" | 0.67" | Round | 0.098" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 39 ga. | 0.0995" | 2 3/8" | 0.66" | Round | 0.0995" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 38 ga. | 0.1015" | 2 1/2" | 0.66" | Round | 0.1015" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 37 ga. | 0.104" | 2 1/2" | 0.66" | Round | 0.104" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 36 ga. | 0.1065" | 2 1/2" | 0.65" | Round | 0.1065" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 35 ga. | 0.11" | 2 5/8" | 0.71" | Round | 0.11" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 34 ga. | 0.111" | 2 5/8" | 0.71" | Round | 0.111" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 33 ga. | 0.113" | 2 5/8" | 0.71" | Round | 0.113" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 32 ga. | 0.116" | 2 3/4" | 0.7" | Round | 0.116" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 31 ga. | 0.12" | 2 3/4" | 0.7" | Round | 0.12" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 30 ga. | 0.1285" | 2 3/4" | 0.74" | Round | 0.1285" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 29 ga. | 0.136" | 2 7/8" | 0.73" | Round | 0.136" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 28 ga. | 0.1405" | 2 7/8" | 0.73" | Round | 0.1405" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 27 ga. | 0.144" | 3" | 0.78" | Round | 0.144" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 26 ga. | 0.147" | 3" | 0.78" | Round | 0.147" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 25 ga. | 0.1495" | 3" | 0.78" | Round | 0.1495" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 24 ga. | 0.152" | 3 1/8" | 0.77" | Round | 0.152" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 23 ga. | 0.154" | 3 1/8" | 0.77" | Round | 0.154" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 22 ga. | 0.157" | 3 1/8" | 0.83" | Round | 0.157" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 21 ga. | 0.159" | 3 1/4" | 0.82" | Round | 0.159" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 20 ga. | 0.161" | 3 1/4" | 0.82" | Round | 0.161" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 19 ga. | 0.166" | 3 1/4" | 0.81" | Round | 0.166" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 18 ga. | 0.1695" | 3 1/4" | 0.81" | Round | 0.1695" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 17 ga. | 0.173" | 3 3/8" | 0.87" | Round | 0.173" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 16 ga. | 0.177" | 3 3/8" | 0.86" | Round | 0.177" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 15 ga. | 0.18" | 3 3/8" | 0.86" | Round | 0.18" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 14 ga. | 0.182" | 3 3/8" | 0.85" | Round | 0.182" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 13 ga. | 0.185" | 3 1/2" | 0.85" | Round | 0.185" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 12 ga. | 0.189" | 3 1/2" | 0.9" | Round | 0.189" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 11 ga. | 0.191" | 3 1/2" | 0.9" | Round | 0.191" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 10 ga. | 0.1935" | 3 5/8" | 0.9" | Round | 0.1935" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 9 ga. | 0.196" | 3 5/8" | 0.89" | Round | 0.196" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 8 ga. | 0.199" | 3 5/8" | 0.89" | Round | 0.199" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 7 ga. | 0.201" | 3 5/8" | 0.89" | Round | 0.201" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 6 ga. | 0.204" | 3 3/4" | 0.94" | Round | 0.204" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 5 ga. | 0.2055" | 3 3/4" | 0.94" | Round | 0.2055" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 4 ga. | 0.209" | 3 3/4" | 0.94" | Round | 0.209" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 3 ga. | 0.213" | 3 3/4" | 0.93" | Round | 0.213" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 2 ga. | 0.221" | 3 7/8" | 0.98" | Round | 0.221" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
| 1 ga. | 0.228" | 3 7/8" | 0.97" | Round | 0.228" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
Short-Flute Cobalt Steel Drill Bit Sets
The short flutes on these jobbers'-length bits provide increased rigidity for drilling straighter holes. Made of cobalt steel, which has better heat and wear resistance than high-speed steel, they can run up to 25% faster and have a longer tool life. A split point keeps the bit centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
| Number of Pieces | Drill Bit Sizes Included | Point Style | Specifications Met | For Use On | Each | |
Inch | ||||||
|---|---|---|---|---|---|---|
Black-Oxide Cobalt Steel | ||||||
| 29 | 1/16"-1/2" (increments of 1/64") | Split | NAS907 Type D | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | 00000000 | 0000000 |