System of Measurement System of Measurement |
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Decimal Size Equivalent Decimal Size Equivalent |
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Material Material |
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For Use On For Use On |
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Length Class Length Class |
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![]() | Jobbers' Length |
![]() | Short Length |
Shank Size Shank Size |
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Maximum Drilling Depth Maximum Drilling Depth | Show |
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Maximum Drilling Depth Maximum Drilling Depth | Hide |
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Point Style Point Style |
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Split |
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Standard |
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Four Facet |
Bit Style Bit Style |
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Spiral Flute | Straight Flute |
Shank Type Shank Type |
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![]() | Round |
Individual/Set Individual/Set |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Flute Direction Flute Direction |
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Right Hand |
Number of Flutes Number of Flutes |
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![]() | 2 |
Shank Material Shank Material |
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For Maximum Hardness For Maximum Hardness |
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Drill Bit Decimal Size Equivalents
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About Drill Bits
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Short-Length Cobalt Steel Drill Bits

Also known as screw-machine and stub-length bits, these provide maximum rigidity for drilling straighter holes than jobbers'-length drill bits. 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.
Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated drill bits.
Drill bits with a split point keep centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Shank | Each | ||||||||
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Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Wire Gauge | |||||||||
Titanium-Nitride (TiN) Coated Cobalt Steel | |||||||||
48 ga | 0.076" | 1 11/16" | 0.3" | Round | 0.076" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 00000 |
Quick-Change Carbide Drill Bits


Make fast bit changes—all of these bits have the same shank diameter, eliminating the need for different collets to hold each size. Made of solid carbide for the highest accuracy and longest tool life, they are harder, stronger, and more wear resistant than high-speed steel, cobalt steel, and carbide-tipped bits. They retain a sharp, hard edge at high temperatures for the best performance on hard and abrasive material. These bits require rigid toolholding to prevent breakage and should not be used in handheld drilling. All are jobbers’ length so they have the rigidity and length required for most applications.
Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated drill bits.
Titanium-aluminum-nitride (TiAlN) coated drill bits are the most wear and temperature resistant for the longest life and highest drilling speeds.
Drill bits with a four-facet point keep 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 | |||||||||
Titanium-Nitride (TiN) Coated Carbide | |||||||||
3/64" | 0.0469" | 1 1/2" | 0.3" | Round | 1/8" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 000000 |
Titanium-Aluminum-Nitride (TiAlN) Coated Carbide | |||||||||
1/32" | 0.0313" | 1 1/2" | 0.3" | Round | 1/8" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
3/64" | 0.0469" | 1 1/2" | 0.3" | Round | 1/8" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
Wire Gauge | |||||||||
Titanium-Nitride (TiN) Coated Carbide | |||||||||
65 ga | 0.035" | 1 1/2" | 0.3" | Round | 1/8" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
64 ga | 0.036" | 1 1/2" | 0.3" | Round | 1/8" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
63 ga | 0.037" | 1 1/2" | 0.3" | Round | 1/8" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
62 ga | 0.038" | 1 1/2" | 0.3" | Round | 1/8" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
61 ga | 0.039" | 1 1/2" | 0.3" | Round | 1/8" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
60 ga | 0.04" | 1 1/2" | 0.3" | Round | 1/8" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
59 ga | 0.041" | 1 1/2" | 0.3" | Round | 1/8" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
58 ga | 0.042" | 1 1/2" | 0.3" | Round | 1/8" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
57 ga | 0.043" | 1 1/2" | 0.3" | Round | 1/8" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
56 ga | 0.0465" | 1 1/2" | 0.3" | Round | 1/8" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
55 ga | 0.052" | 1 1/2" | 0.3" | Round | 1/8" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
54 ga | 0.055" | 1 1/2" | 0.3" | Round | 1/8" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
53 ga | 0.0595" | 1 1/2" | 0.3" | Round | 1/8" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
Titanium-Aluminum-Nitride (TiAlN) Coated Carbide | |||||||||
68 ga | 0.031" | 1 1/2" | 0.3" | Round | 1/8" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
67 ga | 0.032" | 1 1/2" | 0.3" | Round | 1/8" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
66 ga | 0.033" | 1 1/2" | 0.3" | Round | 1/8" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
65 ga | 0.035" | 1 1/2" | 0.3" | Round | 1/8" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
64 ga | 0.036" | 1 1/2" | 0.3" | Round | 1/8" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
63 ga | 0.037" | 1 1/2" | 0.3" | Round | 1/8" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
62 ga | 0.038" | 1 1/2" | 0.3" | Round | 1/8" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
61 ga | 0.039" | 1 1/2" | 0.3" | Round | 1/8" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
60 ga | 0.04" | 1 1/2" | 0.3" | Round | 1/8" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 0000000 | 00000 |
59 ga | 0.041" | 1 1/2" | 0.3" | Round | 1/8" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
58 ga | 0.042" | 1 1/2" | 0.3" | Round | 1/8" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
57 ga | 0.043" | 1 1/2" | 0.3" | Round | 1/8" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
56 ga | 0.0465" | 1 1/2" | 0.3" | Round | 1/8" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
55 ga | 0.052" | 1 1/2" | 0.3" | Round | 1/8" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
54 ga | 0.055" | 1 1/2" | 0.3" | Round | 1/8" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
53 ga | 0.0595" | 1 1/2" | 0.3" | Round | 1/8" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
Carbide Drill Bits for Hardened Steel


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. A four-facet or split point keeps the bit centered without a pilot hole. These bits are short length, also known as screw machine or stub length, which provides maximum rigidity for drilling straighter holes than jobbers'-length drill bits.
Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds 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 | 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 |
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 |
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 |
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 |