System of Measurement System of Measurement |
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Drill Bit Size Drill Bit Size |
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Length Class Length Class |
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| Extended Length |
Decimal Size Equivalent Decimal Size Equivalent |
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Material Material |
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Maximum Drilling Depth Maximum Drilling Depth |
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Shank Type Shank Type |
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 | Round |
Point Style Point Style |
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| Split |
Shank Size Shank Size |
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Point Angle Point Angle |
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Bit Style Bit Style |
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 | Spiral Flute |
Flute Direction Flute Direction |
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| Right Hand |
Individual/Set Individual/Set |
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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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Drill Bit Decimal Size Equivalents
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About Drill Bits
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Short-Flute Extended-Length Carbide-Tipped Drill Bits
The short flutes provide increased rigidity for drilling straighter holes and the long length lets you access hard-to-reach spots. 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. A split point keeps the bit centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Shank | 6" Overall Lg. | 12" Overall Lg. | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Drill Bit Size | Decimal Size Equivalent | Type | Size | Point Style | For Use On | Max. Drilling Dp. | Each | Max. Drilling Dp. | Each | ||
Inch | |||||||||||
Uncoated Carbide-Tipped Steel | |||||||||||
| 1/8" | 0.125" | Round | 1/8" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 1.63" | 0000000 | 000000 | 1.31" | 0000000 | 000000 |
| 9/64" | 0.1406" | Round | 9/64" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 1.75" | 0000000 | 00000 | 1.65" | 0000000 | 00000 |
| 5/32" | 0.1563" | Round | 5/32" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2" | 0000000 | 00000 | 1.61" | 0000000 | 00000 |
| 3/16" | 0.1875" | Round | 3/16" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.31" | 0000000 | 00000 | 1.84" | 0000000 | 00000 |
| 13/64" | 0.2031" | Round | 13/64" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.44" | 0000000 | 00000 | 1.99" | 0000000 | 00000 |
| 7/32" | 0.2188" | Round | 7/32" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.5" | 0000000 | 00000 | 1.95" | 0000000 | 00000 |
| 1/4" | 0.25" | Round | 1/4" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.75" | 0000000 | 00000 | 2.13" | 0000000 | 00000 |
| 17/64" | 0.2656" | Round | 17/64" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.88" | 0000000 | 00000 | 2.41" | 0000000 | 00000 |
| 9/32" | 0.2813" | Round | 9/32" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.94" | 0000000 | 00000 | 2.37" | 0000000 | 00000 |
| 5/16" | 0.3125" | Round | 5/16" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 3.19" | 0000000 | 00000 | 2.56" | 0000000 | 00000 |
| 21/64" | 0.3281" | Round | 21/64" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 3.31" | 0000000 | 00000 | 2.78" | 0000000 | 00000 |
| 3/8" | 0.375" | Round | 3/8" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 3.63" | 0000000 | 00000 | 2.88" | 0000000 | 00000 |
| 25/64" | 0.3906" | Round | 25/64" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 3.75" | 0000000 | 00000 | 3.09" | 0000000 | 00000 |
| 27/64" | 0.4219" | Round | 27/64" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 3.94" | 0000000 | 00000 | 3.22" | 0000000 | 00000 |
| 7/16" | 0.4375" | Round | 7/16" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 4.06" | 0000000 | 00000 | 3.19" | 0000000 | 00000 |
| 1/2" | 0.5" | Round | 1/2" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 4.5" | 0000000 | 00000 | 3.75" | 0000000 | 00000 |
Wire Gauge | |||||||||||
Uncoated Carbide-Tipped Steel | |||||||||||
| 32 ga. | 0.116" | Round | 0.116" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.34" | 00000000 | 00000 |
| 31 ga. | 0.12" | Round | 0.12" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.33" | 00000000 | 00000 |
| 30 ga. | 0.1285" | Round | 0.1285" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.3" | 00000000 | 00000 |
| 29 ga. | 0.136" | Round | 0.136" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.66" | 00000000 | 00000 |
| 28 ga. | 0.1405" | Round | 0.1405" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.65" | 00000000 | 00000 |
| 27 ga. | 0.144" | Round | 0.144" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.64" | 00000000 | 00000 |
| 26 ga. | 0.147" | Round | 0.147" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.63" | 00000000 | 00000 |
| 25 ga. | 0.1495" | Round | 0.1495" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.63" | 00000000 | 00000 |
| 24 ga. | 0.152" | Round | 0.152" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.62" | 00000000 | 00000 |
| 23 ga. | 0.154" | Round | 0.154" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.62" | 00000000 | 00000 |
| 22 ga. | 0.157" | Round | 0.157" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.61" | 00000000 | 00000 |
| 21 ga. | 0.159" | Round | 0.159" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.6" | 00000000 | 00000 |
| 20 ga. | 0.161" | Round | 0.161" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.91" | 00000000 | 00000 |
| 19 ga. | 0.166" | Round | 0.166" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.9" | 00000000 | 00000 |
| 18 ga. | 0.1695" | Round | 0.1695" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.89" | 00000000 | 00000 |
| 17 ga. | 0.173" | Round | 0.173" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.88" | 00000000 | 00000 |
| 16 ga. | 0.177" | Round | 0.177" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.87" | 00000000 | 00000 |
| 15 ga. | 0.18" | Round | 0.18" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.86" | 00000000 | 00000 |
| 14 ga. | 0.182" | Round | 0.182" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.86" | 00000000 | 00000 |
| 13 ga. | 0.185" | Round | 0.185" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.85" | 00000000 | 00000 |
| 12 ga. | 0.189" | Round | 0.189" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.84" | 00000000 | 00000 |
| 11 ga. | 0.191" | Round | 0.191" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.84" | 00000000 | 00000 |
| 10 ga. | 0.1935" | Round | 0.1935" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.02" | 00000000 | 00000 |
| 9 ga. | 0.196" | Round | 0.196" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.01" | 00000000 | 00000 |
| 8 ga. | 0.199" | Round | 0.199" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2" | 00000000 | 00000 |
| 7 ga. | 0.201" | Round | 0.201" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2" | 00000000 | 00000 |
| 6 ga. | 0.204" | Round | 0.204" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.99" | 00000000 | 00000 |
| 5 ga. | 0.2055" | Round | 0.2055" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.99" | 00000000 | 00000 |
| 4 ga. | 0.209" | Round | 0.209" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.98" | 00000000 | 00000 |
| 3 ga. | 0.213" | Round | 0.213" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.97" | 00000000 | 00000 |
| 2 ga. | 0.221" | Round | 0.221" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.95" | 00000000 | 00000 |
| 1 ga. | 0.228" | Round | 0.228" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.18" | 00000000 | 00000 |
Letter | |||||||||||
Uncoated Carbide-Tipped Steel | |||||||||||
| A | 0.234" | Round | 0.234" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.17" | 00000000 | 00000 |
| B | 0.238" | Round | 0.238" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.16" | 00000000 | 00000 |
| C | 0.242" | Round | 0.242" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.15" | 00000000 | 00000 |
| D | 0.246" | Round | 0.246" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.14" | 00000000 | 00000 |
| F | 0.257" | Round | 0.257" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.42" | 00000000 | 00000 |
| G | 0.261" | Round | 0.261" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.42" | 00000000 | 00000 |
| H | 0.266" | Round | 0.266" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.41" | 00000000 | 00000 |
| I | 0.272" | Round | 0.272" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.39" | 00000000 | 00000 |
| J | 0.277" | Round | 0.277" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.38" | 00000000 | 00000 |
| K | 0.281" | Round | 0.281" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.38" | 00000000 | 00000 |
| L | 0.29" | Round | 0.29" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.61" | 00000000 | 00000 |
| M | 0.295" | Round | 0.295" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.6" | 00000000 | 00000 |
| N | 0.302" | Round | 0.302" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.58" | 00000000 | 00000 |
| O | 0.316" | Round | 0.316" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.56" | 00000000 | 00000 |
| P | 0.323" | Round | 0.323" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.79" | 00000000 | 00000 |
| Q | 0.332" | Round | 0.332" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.77" | 00000000 | 00000 |
| R | 0.339" | Round | 0.339" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.76" | 00000000 | 00000 |
| S | 0.348" | Round | 0.348" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.93" | 00000000 | 00000 |
| T | 0.358" | Round | 0.358" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.91" | 00000000 | 00000 |
| U | 0.368" | Round | 0.368" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.89" | 00000000 | 00000 |
| V | 0.377" | Round | 0.377" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.87" | 00000000 | 00000 |
| W | 0.386" | Round | 0.386" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 3.1" | 00000000 | 00000 |
| X | 0.397" | Round | 0.397" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 3.08" | 00000000 | 00000 |
| Y | 0.404" | Round | 0.404" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 3.07" | 00000000 | 00000 |
| Z | 0.413" | Round | 0.413" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 3.24" | 00000000 | 00000 |