Search Results
System of Measurement System of Measurement |
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Size Size |
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Decimal Size Equivalent Decimal Size Equivalent |
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Shank Size Shank Size |
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Maximum Drilling Depth Maximum Drilling Depth |
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Length Class Length Class |
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 | Short Length |
 | Jobbers' Length |
Finish Finish |
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For Maximum Hardness For Maximum Hardness |
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Point Style Point Style |
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| Split |
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| Four Facet |
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| Notched |
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| Standard |
Drill Bit Decimal Size Equivalents
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About Drill Bits
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Carbide Drill Bits for Hardened Steel
Carbide Shank with Uncoated Carbide Bit
Carbide Shank with Titanium-Nitride (TiN) Coated Carbide Bit
Steel Shank with Uncoated Carbide Bit
Harder, stronger, and more wear resistant than carbide-tipped steel, solid-carbide bits maintain their sharp edges longer. They require rigid toolholding to prevent breakage and should not be used in hand-held drilling applications. The straight flutes withstand the heavy pressure necessary to penetrate hard steel. They are short length, also known as screw machine or stub length, which provides maximum rigidity for drilling straighter holes than jobbers'-length drill bits.
Drill bits with a carbide shank have the strength and rigidity to drill steel with a Rockwell hardness up to C45.
Drill bits with a steel shank have four straight cutting edges which provide the strength to drill steel with a Rockwell hardness up to C70 such as tool steel and dies.
Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated drill bits.
Drill bits with a four-facet or split point keep centered without a pilot hole.
Shank | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | No. of Flutes | For Max. Hardness | Point Style | Each | |
Uncoated Carbide | ||||||||||
Inch | ||||||||||
Carbide Shank | ||||||||||
| 1/16" | 0.0625" | 1 1/2" | 0.3" | Round | 1/16" | 2 | Rockwell C45 | Four Facet | 0000000 | 000000 |
| 5/64" | 0.0781" | 2" | 0.4" | Round | 5/64" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 3/32" | 0.0938" | 2" | 0.4" | Round | 3/32" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 7/64" | 0.1094" | 2 1/4" | 0.5" | Round | 7/64" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 1/8" | 0.125" | 2 1/4" | 0.5" | Round | 1/8" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 9/64" | 0.1406" | 2 1/2" | 0.5" | Round | 9/64" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 5/32" | 0.1563" | 2 1/2" | 0.6" | Round | 5/32" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 11/64" | 0.1719" | 2 1/2" | 0.6" | Round | 11/64" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 3/16" | 0.1875" | 2 1/2" | 0.6" | Round | 3/16" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 13/64" | 0.2031" | 2 1/2" | 0.8" | Round | 13/64" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 7/32" | 0.2188" | 2 1/2" | 0.8" | Round | 7/32" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 15/64" | 0.2344" | 2 1/2" | 0.8" | Round | 15/64" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 1/4" | 0.25" | 2 1/2" | 0.8" | Round | 1/4" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 17/64" | 0.2656" | 2 1/2" | 0.8" | Round | 17/64" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 9/32" | 0.2813" | 2 1/2" | 0.8" | Round | 9/32" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 5/16" | 0.3125" | 2 1/2" | 1" | Round | 5/16" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 3/8" | 0.375" | 3" | 1" | Round | 3/8" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 7/16" | 0.4375" | 3" | 1" | Round | 7/16" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 1/2" | 0.5" | 3" | 1" | Round | 1/2" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
Steel Shank | ||||||||||
| 5/64" | 0.0781" | 1 3/8" | 0.88" | Round | 7/32" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 3/32" | 0.0938" | 1 1/2" | 0.88" | Round | 7/32" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 1/8" | 0.125" | 2" | 0.88" | Round | 1/4" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 5/32" | 0.1563" | 2 1/8" | 1" | Round | 1/4" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 3/16" | 0.1875" | 2 1/4" | 1" | Round | 5/16" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 13/64" | 0.2031" | 2 1/2" | 0.88" | Round | 5/16" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 7/32" | 0.2188" | 2 1/2" | 1.25" | Round | 5/16" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 1/4" | 0.25" | 2 1/2" | 1.25" | Round | 3/8" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 17/64" | 0.2656" | 2 1/2" | 0.88" | Round | 3/8" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 9/32" | 0.2813" | 2 1/2" | 1.25" | Round | 3/8" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 5/16" | 0.3125" | 2 1/2" | 1.25" | Round | 3/8" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 3/8" | 0.375" | 2 3/4" | 1.25" | Round | 1/2" | 4 | Rockwell C70 | Standard | 000000 | 00000 |
| 13/32" | 0.4063" | 2 3/4" | 1.25" | Round | 1/2" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 1/2" | 0.5" | 2 3/4" | 1.25" | Round | 5/8" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 17/32" | 0.5313" | 2 3/4" | 1.25" | Round | 5/8" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
Wire Gauge | ||||||||||
Carbide Shank | ||||||||||
| 60 ga | 0.04" | 1 1/2" | 0.3" | Round | 0.04" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 59 ga | 0.041" | 1 1/2" | 0.3" | Round | 0.041" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 58 ga | 0.042" | 1 1/2" | 0.3" | Round | 0.042" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 57 ga | 0.043" | 1 1/2" | 0.3" | Round | 0.043" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 56 ga | 0.0465" | 1 1/2" | 0.3" | Round | 0.0465" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 55 ga | 0.052" | 1 1/2" | 0.3" | Round | 0.052" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 54 ga | 0.055" | 1 1/2" | 0.3" | Round | 0.055" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 53 ga | 0.0595" | 1 1/2" | 0.3" | Round | 0.0595" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 52 ga | 0.0635" | 1 1/2" | 0.3" | Round | 0.0635" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 51 ga | 0.067" | 1 1/2" | 0.3" | Round | 0.067" | 2 | Rockwell C45 | Four Facet | 000000 | 00000 |
| 50 ga | 0.07" | 2" | 0.3" | Round | 0.07" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 49 ga | 0.073" | 2" | 0.3" | Round | 0.073" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 48 ga | 0.076" | 2" | 0.4" | Round | 0.076" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 47 ga | 0.0785" | 2" | 0.4" | Round | 0.0785" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 46 ga | 0.081" | 2" | 0.4" | Round | 0.081" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 45 ga | 0.082" | 2" | 0.4" | Round | 0.082" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 44 ga | 0.086" | 2" | 0.4" | Round | 0.086" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 43 ga | 0.089" | 2" | 0.4" | Round | 0.089" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 42 ga | 0.0935" | 2" | 0.4" | Round | 0.0935" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 41 ga | 0.096" | 2" | 0.4" | Round | 0.096" | 2 | Rockwell C45 | Four Facet | 000000 | 00000 |
| 40 ga | 0.098" | 2" | 0.4" | Round | 0.098" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 39 ga | 0.0995" | 2 1/4" | 0.5" | Round | 0.0995" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 38 ga | 0.1015" | 2 1/4" | 0.5" | Round | 0.1015" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 37 ga | 0.104" | 2 1/4" | 0.5" | Round | 0.104" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 36 ga | 0.1065" | 2 1/4" | 0.5" | Round | 0.1065" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 35 ga | 0.11" | 2 1/4" | 0.5" | Round | 0.11" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 34 ga | 0.111" | 2 1/4" | 0.5" | Round | 0.111" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 33 ga | 0.113" | 2 1/4" | 0.5" | Round | 0.113" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 32 ga | 0.116" | 2 1/4" | 0.5" | Round | 0.116" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 31 ga | 0.12" | 2 1/4" | 0.5" | Round | 0.12" | 2 | Rockwell C45 | Four Facet | 000000 | 00000 |
| 30 ga | 0.1285" | 2 1/4" | 0.5" | Round | 0.1285" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 29 ga | 0.136" | 2 1/2" | 0.5" | Round | 0.136" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 28 ga | 0.1405" | 2 1/2" | 0.5" | Round | 0.1405" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 27 ga | 0.144" | 2 1/2" | 0.5" | Round | 0.144" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 26 ga | 0.147" | 2 1/2" | 0.5" | Round | 0.147" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 25 ga | 0.1495" | 2 1/2" | 0.5" | Round | 0.1495" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 24 ga | 0.152" | 2 1/2" | 0.5" | Round | 0.152" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 23 ga | 0.154" | 2 1/2" | 0.5" | Round | 0.154" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 22 ga | 0.157" | 2 1/2" | 0.6" | Round | 0.157" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 21 ga | 0.159" | 2 1/2" | 0.6" | Round | 0.159" | 2 | Rockwell C45 | Four Facet | 000000 | 00000 |
| 20 ga | 0.161" | 2 1/2" | 0.6" | Round | 0.161" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 19 ga | 0.166" | 2 1/2" | 0.6" | Round | 0.166" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 18 ga | 0.1695" | 2 1/2" | 0.6" | Round | 0.1695" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 17 ga | 0.173" | 2 1/2" | 0.6" | Round | 0.173" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 16 ga | 0.177" | 2 1/2" | 0.6" | Round | 0.177" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 15 ga | 0.18" | 2 1/2" | 0.6" | Round | 0.18" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 14 ga | 0.182" | 2 1/2" | 0.6" | Round | 0.182" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 13 ga | 0.185" | 2 1/2" | 0.6" | Round | 0.185" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 12 ga | 0.189" | 2 1/2" | 0.6" | Round | 0.189" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 11 ga | 0.191" | 2 1/2" | 0.6" | Round | 0.191" | 2 | Rockwell C45 | Four Facet | 000000 | 00000 |
| 10 ga | 0.1935" | 2 1/2" | 0.6" | Round | 0.1935" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 9 ga | 0.196" | 2 1/2" | 0.8" | Round | 0.196" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 8 ga | 0.199" | 2 1/2" | 0.8" | Round | 0.199" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 7 ga | 0.201" | 2 1/2" | 0.8" | Round | 0.201" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 6 ga | 0.204" | 2 1/2" | 0.8" | Round | 0.204" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 5 ga | 0.2055" | 2 1/2" | 0.8" | Round | 0.2055" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 4 ga | 0.209" | 2 1/2" | 0.8" | Round | 0.209" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 3 ga | 0.213" | 2 1/2" | 0.8" | Round | 0.213" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 2 ga | 0.221" | 2 1/2" | 0.8" | Round | 0.221" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
| 1 ga | 0.228" | 2 1/2" | 0.8" | Round | 0.228" | 2 | Rockwell C45 | Four Facet | 000000 | 00000 |
Steel Shank | ||||||||||
| 50 ga | 0.07" | 1 3/8" | 0.88" | Round | 7/32" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 49 ga | 0.073" | 1 3/8" | 0.88" | Round | 7/32" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 48 ga | 0.076" | 1 3/8" | 0.88" | Round | 7/32" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 47 ga | 0.0785" | 1 3/8" | 0.88" | Round | 7/32" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 46 ga | 0.081" | 1 3/8" | 0.88" | Round | 7/32" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 45 ga | 0.082" | 1 3/8" | 0.88" | Round | 7/32" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 44 ga | 0.086" | 1 3/8" | 0.88" | Round | 7/32" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 43 ga | 0.089" | 1 3/8" | 0.88" | Round | 7/32" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 42 ga | 0.0935" | 1 3/8" | 0.88" | Round | 7/32" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 41 ga | 0.096" | 1 1/2" | 0.88" | Round | 7/32" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 40 ga | 0.098" | 1 1/2" | 0.88" | Round | 7/32" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 39 ga | 0.0995" | 1 1/2" | 0.88" | Round | 7/32" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 38 ga | 0.1015" | 1 1/2" | 0.88" | Round | 7/32" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 37 ga | 0.104" | 1 1/2" | 0.88" | Round | 7/32" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 36 ga | 0.1065" | 1 1/2" | 0.88" | Round | 7/32" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 35 ga | 0.11" | 1 3/4" | 0.88" | Round | 7/32" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 34 ga | 0.111" | 1 3/4" | 0.88" | Round | 7/32" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 33 ga | 0.113" | 2" | 0.88" | Round | 7/32" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 32 ga | 0.116" | 2" | 0.88" | Round | 1/4" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 31 ga | 0.12" | 2" | 0.88" | Round | 1/4" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 30 ga | 0.1285" | 1 3/4" | 0.88" | Round | 1/4" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 29 ga | 0.136" | 2 1/8" | 0.88" | Round | 1/4" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 28 ga | 0.1405" | 2 1/8" | 1" | Round | 1/4" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 27 ga | 0.144" | 2 1/8" | 1" | Round | 1/4" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 26 ga | 0.147" | 2 1/8" | 1" | Round | 1/4" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 25 ga | 0.1495" | 2 1/8" | 1" | Round | 1/4" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 24 ga | 0.152" | 2 1/8" | 1" | Round | 1/4" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 23 ga | 0.154" | 2 1/8" | 1" | Round | 1/4" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 22 ga | 0.157" | 2 1/8" | 1" | Round | 1/4" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 21 ga | 0.159" | 2 1/8" | 1" | Round | 1/4" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 20 ga | 0.161" | 2 1/4" | 1" | Round | 1/4" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 19 ga | 0.166" | 2 1/4" | 1" | Round | 1/4" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 18 ga | 0.1695" | 2 1/4" | 1" | Round | 1/4" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 17 ga | 0.173" | 0.173" | 1" | Round | 5/16" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 16 ga | 0.177" | 0.177" | 1" | Round | 5/16" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 15 ga | 0.18" | 2 1/4" | 1" | Round | 5/16" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 14 ga | 0.182" | 2 1/4" | 1" | Round | 5/16" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 13 ga | 0.185" | 2 1/4" | 1" | Round | 5/16" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 12 ga | 0.189" | 2 1/4" | 1" | Round | 5/16" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 11 ga | 0.191" | 2 1/4" | 1.25" | Round | 5/16" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 10 ga | 0.1935" | 2 1/2" | 1.25" | Round | 5/16" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 9 ga | 0.196" | 2 1/2" | 1.25" | Round | 5/16" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 8 ga | 0.199" | 2 1/2" | 1.25" | Round | 5/16" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 7 ga | 0.201" | 2 1/2" | 1.25" | Round | 5/16" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 6 ga | 0.204" | 2 1/2" | 1.25" | Round | 5/16" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 5 ga | 0.2055" | 2 1/2" | 1.25" | Round | 5/16" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 4 ga | 0.209" | 2 1/2" | 1.25" | Round | 5/16" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 3 ga | 0.213" | 2 1/2" | 1.25" | Round | 5/16" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 2 ga | 0.221" | 0.221" | 1.25" | Round | 3/8" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
| 1 ga | 0.228" | 2 1/2" | 1.25" | Round | 3/8" | 4 | Rockwell C70 | Standard | 0000000 | 00000 |
Letter | ||||||||||
Carbide Shank | ||||||||||
| A | 0.234" | 2 1/2" | 0.8" | Round | 0.234" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
| B | 0.238" | 2 1/2" | 0.8" | Round | 0.238" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
| C | 0.242" | 2 1/2" | 0.8" | Round | 0.242" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
| D | 0.246" | 2 1/2" | 0.8" | Round | 0.246" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
| E | 0.25" | 2 1/2" | 0.8" | Round | 1/4" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
| F | 0.257" | 2 1/2" | 0.8" | Round | 0.257" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
| G | 0.261" | 2 1/2" | 0.8" | Round | 0.261" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
| H | 0.266" | 2 1/2" | 0.8" | Round | 0.266" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
| I | 0.272" | 2 1/2" | 0.8" | Round | 0.272" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
| J | 0.277" | 2 1/2" | 0.8" | Round | 0.277" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
| K | 0.281" | 2 1/2" | 0.8" | Round | 0.281" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
| L | 0.29" | 2 1/2" | 0.8" | Round | 0.29" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
| M | 0.295" | 2 1/2" | 0.8" | Round | 0.295" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
| N | 0.302" | 2 1/2" | 1" | Round | 0.302" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
| O | 0.316" | 2 1/2" | 1" | Round | 0.316" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
| P | 0.323" | 2 1/2" | 1" | Round | 0.323" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
| Q | 0.332" | 3" | 1" | Round | 0.332" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
| R | 0.339" | 3" | 1" | Round | 0.339" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
| S | 0.348" | 3" | 1" | Round | 0.348" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
| T | 0.358" | 3" | 1" | Round | 0.358" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
| U | 0.368" | 3" | 1" | Round | 0.368" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
| V | 0.377" | 3" | 1" | Round | 0.377" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
| W | 0.386" | 3" | 1" | Round | 0.386" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
| X | 0.397" | 3" | 1" | Round | 0.397" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
| Y | 0.404" | 3" | 1" | Round | 0.404" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
| Z | 0.413" | 3" | 1" | Round | 0.413" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
Metric | ||||||||||
Carbide Shank | ||||||||||
| 1.0 mm | 0.0394" | 38mm | 7.6mm | Round | 1mm | 2 | Rockwell C45 | Split | 0000000 | 00000 |
| 1.5 mm | 0.0591" | 38mm | 7.6mm | Round | 1.5mm | 2 | Rockwell C45 | Split | 0000000 | 00000 |
| 2.0 mm | 0.0787" | 50mm | 9.6mm | Round | 2mm | 2 | Rockwell C45 | Split | 0000000 | 00000 |
| 2.5 mm | 0.0984" | 50mm | 9.6mm | Round | 2.5mm | 2 | Rockwell C45 | Split | 0000000 | 00000 |
| 3.0 mm | 0.1181" | 57mm | 12.8mm | Round | 3mm | 2 | Rockwell C45 | Split | 0000000 | 00000 |
| 4.0 mm | 0.1575" | 63mm | 15.2mm | Round | 4mm | 2 | Rockwell C45 | Split | 0000000 | 00000 |
| 4.5 mm | 0.1772" | 63mm | 15.2mm | Round | 4.5mm | 2 | Rockwell C45 | Split | 0000000 | 00000 |
| 5.0 mm | 0.1968" | 63mm | 20mm | Round | 5mm | 2 | Rockwell C45 | Split | 0000000 | 00000 |
| 6.0 mm | 0.2362" | 63mm | 20mm | Round | 6mm | 2 | Rockwell C45 | Split | 0000000 | 00000 |
| 8.0 mm | 0.315" | 63mm | 25.6mm | Round | 8mm | 2 | Rockwell C45 | Split | 0000000 | 00000 |
Titanium-Nitride (TiN) Coated Carbide | ||||||||||
Inch | ||||||||||
Carbide Shank | ||||||||||
| 1/16" | 0.0625" | 1 1/2" | 0.3" | Round | 1/16" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
| 5/64" | 0.0781" | 2" | 0.4" | Round | 5/64" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
| 3/32" | 0.0938" | 2" | 0.4" | Round | 3/32" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
| 7/64" | 0.1094" | 2 1/4" | 0.5" | Round | 7/64" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
| 1/8" | 0.125" | 2 1/4" | 0.5" | Round | 1/8" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
| 9/64" | 0.1406" | 2 1/2" | 0.5" | Round | 9/64" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
| 5/32" | 0.1563" | 2 1/2" | 0.6" | Round | 5/32" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
| 11/64" | 0.1719" | 2 1/2" | 0.6" | Round | 11/64" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
| 3/16" | 0.1875" | 2 1/2" | 0.6" | Round | 3/16" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
| 13/64" | 0.2031" | 2 1/2" | 0.8" | Round | 13/64" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
| 7/32" | 0.2188" | 2 1/2" | 0.8" | Round | 7/32" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
| 15/64" | 0.2344" | 2 1/2" | 0.8" | Round | 15/64" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
| 1/4" | 0.25" | 2 1/2" | 0.8" | Round | 1/4" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
| 17/64" | 0.2656" | 2 1/2" | 0.8" | Round | 17/64" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
| 9/32" | 0.2813" | 2 1/2" | 0.8" | Round | 9/32" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
| 5/16" | 0.3125" | 2 1/2" | 1" | Round | 5/16" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
| 3/8" | 0.375" | 3" | 1" | Round | 3/8" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
| 7/16" | 0.4375" | 3" | 1" | Round | 7/16" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
| 1/2" | 0.5" | 3" | 1" | Round | 1/2" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
Wire Gauge | ||||||||||
Carbide Shank | ||||||||||
| 56 ga | 0.0465" | 1 1/2" | 0.3" | Round | 0.0465" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 55 ga | 0.052" | 1 1/2" | 0.3" | Round | 0.052" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 54 ga | 0.055" | 1 1/2" | 0.3" | Round | 0.055" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 53 ga | 0.0595" | 1 1/2" | 0.3" | Round | 0.0595" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 52 ga | 0.0635" | 1 1/2" | 0.3" | Round | 0.0635" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 51 ga | 0.067" | 1 1/2" | 0.3" | Round | 0.067" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 50 ga | 0.07" | 2" | 0.3" | Round | 0.07" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 49 ga | 0.073" | 2" | 0.3" | Round | 0.073" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 48 ga | 0.076" | 2" | 0.4" | Round | 0.076" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 47 ga | 0.0785" | 2" | 0.4" | Round | 0.0785" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 46 ga | 0.081" | 2" | 0.4" | Round | 0.081" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 45 ga | 0.082" | 2" | 0.4" | Round | 0.082" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 44 ga | 0.086" | 2" | 0.4" | Round | 0.086" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 43 ga | 0.089" | 2" | 0.4" | Round | 0.089" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 42 ga | 0.0935" | 2" | 0.4" | Round | 0.0935" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 41 ga | 0.096" | 2" | 0.4" | Round | 0.096" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 40 ga | 0.098" | 2" | 0.4" | Round | 0.098" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 39 ga | 0.0995" | 2 1/4" | 0.5" | Round | 0.0995" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 38 ga | 0.1015" | 2 1/4" | 0.5" | Round | 0.1015" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 37 ga | 0.104" | 2 1/4" | 0.5" | Round | 0.104" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 36 ga | 0.1065" | 2 1/4" | 0.5" | Round | 0.1065" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 35 ga | 0.11" | 2 1/4" | 0.5" | Round | 0.11" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 34 ga | 0.111" | 2 1/4" | 0.5" | Round | 0.111" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 33 ga | 0.113" | 2 1/4" | 0.5" | Round | 0.113" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 32 ga | 0.116" | 2 1/4" | 0.5" | Round | 0.116" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 31 ga | 0.12" | 2 1/4" | 0.5" | Round | 0.12" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
| 30 ga | 0.1285" | 2 1/4" | 0.5" | Round | 0.1285" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 29 ga | 0.136" | 2 1/2" | 0.5" | Round | 0.136" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 28 ga | 0.1405" | 2 1/2" | 0.5" | Round | 0.1405" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 27 ga | 0.144" | 2 1/2" | 0.5" | Round | 0.144" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 26 ga | 0.147" | 2 1/2" | 0.5" | Round | 0.147" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 25 ga | 0.1495" | 2 1/2" | 0.5" | Round | 0.1495" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 24 ga | 0.152" | 2 1/2" | 0.5" | Round | 0.152" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 23 ga | 0.154" | 2 1/2" | 0.5" | Round | 0.154" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 22 ga | 0.157" | 2 1/2" | 0.6" | Round | 0.157" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
| 21 ga | 0.159" | 2 1/2" | 0.6" | Round | 0.159" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 20 ga | 0.161" | 2 1/2" | 0.6" | Round | 0.161" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 19 ga | 0.166" | 2 1/2" | 0.6" | Round | 0.166" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 18 ga | 0.1695" | 2 1/2" | 0.6" | Round | 0.1695" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 17 ga | 0.173" | 2 1/2" | 0.6" | Round | 0.173" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 16 ga | 0.177" | 2 1/2" | 0.6" | Round | 0.177" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 15 ga | 0.18" | 2 1/2" | 0.6" | Round | 0.18" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 14 ga | 0.182" | 2 1/2" | 0.6" | Round | 0.182" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 13 ga | 0.185" | 2 1/2" | 0.6" | Round | 0.185" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 12 ga | 0.189" | 2 1/2" | 0.6" | Round | 0.189" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 11 ga | 0.191" | 2 1/2" | 0.6" | Round | 0.191" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 10 ga | 0.1935" | 2 1/2" | 0.6" | Round | 0.1935" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 9 ga | 0.196" | 2 1/2" | 0.8" | Round | 0.196" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 8 ga | 0.199" | 2 1/2" | 0.8" | Round | 0.199" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 7 ga | 0.201" | 2 1/2" | 0.8" | Round | 0.201" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 6 ga | 0.204" | 2 1/2" | 0.8" | Round | 0.204" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 5 ga | 0.2055" | 2 1/2" | 0.8" | Round | 0.2055" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 4 ga | 0.209" | 2 1/2" | 0.8" | Round | 0.209" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 3 ga | 0.213" | 2 1/2" | 0.8" | Round | 0.213" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 2 ga | 0.221" | 2 1/2" | 0.8" | Round | 0.221" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
| 1 ga | 0.228" | 2 1/2" | 0.8" | Round | 0.228" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
Carbide-Tipped Drill Bits for Hardened Steel
The straight flutes and notched point withstand the heavy pressure necessary to penetrate hard steel. These carbide-tipped bits maintain their sharp edges when drilling abrasive material. Because they aren’t as brittle as solid carbide bits, they can be used in less rigid setups, such as a hand-held drill. They are jobbers' length and have the rigidity and length required for most hand-held drilling and machine tool applications.
Shank | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Max. Hardness | Each | |
Inch | |||||||||
Uncoated Carbide-Tipped Steel | |||||||||
| 3/16" | 0.1875" | 3 1/2" | 0.75" | Round | 3/16" | Notched | Rockwell C60 | 0000000 | 000000 |
| 13/64" | 0.2031" | 3 3/4" | 0.81" | Round | 13/64" | Notched | Rockwell C60 | 0000000 | 00000 |
| 7/32" | 0.2188" | 3 3/4" | 0.87" | Round | 7/32" | Notched | Rockwell C60 | 0000000 | 00000 |
| 15/64" | 0.2344" | 4" | 0.93" | Round | 15/64" | Notched | Rockwell C60 | 0000000 | 00000 |
| 1/4" | 0.25" | 4" | 1" | Round | 1/4" | Notched | Rockwell C60 | 0000000 | 00000 |
| 17/64" | 0.2656" | 4 1/4" | 1.06" | Round | 17/64" | Notched | Rockwell C60 | 0000000 | 00000 |
| 9/32" | 0.2813" | 4 1/4" | 1.12" | Round | 9/32" | Notched | Rockwell C60 | 0000000 | 00000 |
| 19/64" | 0.2969" | 4 1/2" | 1.18" | Round | 19/64" | Notched | Rockwell C60 | 0000000 | 00000 |
| 5/16" | 0.3125" | 4 1/2" | 1.25" | Round | 5/16" | Notched | Rockwell C60 | 0000000 | 00000 |
| 21/64" | 0.3281" | 4 3/4" | 1.31" | Round | 21/64" | Notched | Rockwell C60 | 0000000 | 00000 |
| 11/32" | 0.3438" | 4 3/4" | 1.37" | Round | 11/32" | Notched | Rockwell C60 | 0000000 | 00000 |
| 23/64" | 0.3594" | 5" | 1.43" | Round | 23/64" | Notched | Rockwell C60 | 0000000 | 00000 |
| 3/8" | 0.375" | 5" | 1.5" | Round | 3/8" | Notched | Rockwell C60 | 0000000 | 00000 |
| 25/64" | 0.3906" | 5 1/4" | 1.56" | Round | 25/64" | Notched | Rockwell C60 | 0000000 | 00000 |
| 13/32" | 0.4063" | 5 1/4" | 1.62" | Round | 13/32" | Notched | Rockwell C60 | 0000000 | 00000 |
| 27/64" | 0.4219" | 5 1/2" | 1.68" | Round | 27/64" | Notched | Rockwell C60 | 0000000 | 00000 |
| 7/16" | 0.4375" | 5 1/2" | 1.75" | Round | 7/16" | Notched | Rockwell C60 | 0000000 | 00000 |
| 15/32" | 0.4688" | 5 3/4" | 1.87" | Round | 15/32" | Notched | Rockwell C60 | 0000000 | 00000 |
| 1/2" | 0.5" | 6" | 2" | Round | 1/2" | Notched | Rockwell C60 | 0000000 | 00000 |
| 17/32" | 0.5313" | 6" | 2.12" | Round | 17/32" | Notched | Rockwell C60 | 0000000 | 00000 |
| 9/16" | 0.5625" | 6" | 2.25" | Round | 9/16" | Notched | Rockwell C60 | 0000000 | 00000 |
| 5/8" | 0.625" | 7" | 2.5" | Round | 5/8" | Notched | Rockwell C60 | 0000000 | 00000 |
| 3/4" | 0.75" | 8" | 3" | Round | 3/4" | Notched | Rockwell C60 | 0000000 | 00000 |
Metric | |||||||||
Uncoated Carbide-Tipped Steel | |||||||||
| 5.0 mm | 0.1968" | 95mm | 20mm | Round | 5mm | Notched | Rockwell C60 | 0000000 | 00000 |
| 5.5 mm | 0.2165" | 95mm | 22mm | Round | 5.5mm | Notched | Rockwell C60 | 0000000 | 00000 |
| 6.0 mm | 0.2362" | 102mm | 24mm | Round | 6mm | Notched | Rockwell C60 | 0000000 | 00000 |
| 6.5 mm | 0.2559" | 108mm | 26mm | Round | 6.5mm | Notched | Rockwell C60 | 0000000 | 00000 |
| 7.0 mm | 0.2756" | 108mm | 28mm | Round | 7mm | Notched | Rockwell C60 | 0000000 | 00000 |
| 7.5 mm | 0.2953" | 114mm | 30mm | Round | 7.5mm | Notched | Rockwell C60 | 0000000 | 00000 |
| 8.0 mm | 0.315" | 114mm | 32mm | Round | 8mm | Notched | Rockwell C60 | 0000000 | 00000 |
| 8.5 mm | 0.3346" | 121mm | 34mm | Round | 8.5mm | Notched | Rockwell C60 | 0000000 | 00000 |
| 9.0 mm | 0.3543" | 127mm | 36mm | Round | 9mm | Notched | Rockwell C60 | 0000000 | 00000 |
| 9.5 mm | 0.374" | 127mm | 38mm | Round | 9.5mm | Notched | Rockwell C60 | 0000000 | 00000 |
| 10.0 mm | 0.3937" | 133mm | 40mm | Round | 10mm | Notched | Rockwell C60 | 0000000 | 00000 |
| 10.5 mm | 0.4134" | 140mm | 42mm | Round | 10.5mm | Notched | Rockwell C60 | 0000000 | 00000 |
| 11.0 mm | 0.4331" | 140mm | 44mm | Round | 11mm | Notched | Rockwell C60 | 0000000 | 00000 |
| 11.5 mm | 0.4528" | 146mm | 46mm | Round | 11.5mm | Notched | Rockwell C60 | 0000000 | 00000 |
| 12.0 mm | 0.4724" | 146mm | 48mm | Round | 12mm | Notched | Rockwell C60 | 0000000 | 00000 |
| 12.5 mm | 0.4921" | 152mm | 50mm | Round | 12.5mm | Notched | Rockwell C60 | 0000000 | 00000 |
| 13.0 mm | 0.5118" | 152mm | 52mm | Round | 13mm | Notched | Rockwell C60 | 0000000 | 00000 |
| 13.5 mm | 0.5315" | 152mm | 54mm | Round | 13.5mm | Notched | Rockwell C60 | 0000000 | 00000 |
| 14.0 mm | 0.5512" | 152mm | 56mm | Round | 14mm | Notched | Rockwell C60 | 0000000 | 00000 |