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Drill Bit Size Drill Bit Size |
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Decimal Size Equivalent Decimal Size Equivalent |
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For Use On For Use On |
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Length Class Length Class |
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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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Bit Style Bit Style |
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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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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Thread Size Thread Size |
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Drill Bit Decimal Size Equivalents
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About Drill Bits
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Short-Length Drill Bits
Also known as screw-machine and stub-length bits, these provide maximum rigidity for drilling straighter holes than jobbers'- and maintenance-length drill bits.
Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated and black-oxide drill bits.
For technical drawings and 3-D models, click on a part number.
Shank | Each | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Specifications Met | For Use On | Each | |
Wire Gauge | ||||||||||
Titanium-Nitride (TiN) Coated High-Speed Steel | ||||||||||
| 60 ga. | 0.04" | 1 3/8" | 0.38" | Round | 0.04" | Standard | __ | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 000000000 | 00000 |
| 59 ga. | 0.041" | 1 3/8" | 0.38" | Round | 0.041" | Standard | __ | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 000000000 | 0000 |
| 58 ga. | 0.042" | 1 3/8" | 0.38" | Round | 0.042" | Standard | __ | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 000000000 | 0000 |
| 57 ga. | 0.043" | 1 3/8" | 0.38" | Round | 0.043" | Standard | __ | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 000000000 | 0000 |
| 56 ga. | 0.0465" | 1 3/8" | 0.38" | Round | 0.0465" | Standard | __ | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 000000000 | 0000 |
Uncoated High-Speed Steel | ||||||||||
| 60 ga. | 0.04" | 1 3/8" | 0.38" | Round | 0.04" | Standard | ASME B94.11M | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 00000000 | 0000 |
| 59 ga. | 0.041" | 1 3/8" | 0.38" | Round | 0.041" | Standard | ASME B94.11M | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 00000000 | 0000 |
| 58 ga. | 0.042" | 1 3/8" | 0.38" | Round | 0.042" | Standard | ASME B94.11M | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 00000000 | 0000 |
| 57 ga. | 0.043" | 1 3/8" | 0.38" | Round | 0.043" | Standard | ASME B94.11M | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 00000000 | 0000 |
| 56 ga. | 0.0465" | 1 3/8" | 0.38" | Round | 0.0465" | Standard | ASME B94.11M | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 00000000 | 0000 |
Cobalt Steel Drill Bits
These jobbers'-length bits have the rigidity and length required for most applications. 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.
For technical drawings and 3-D models, click on a part number.
Shank | Each | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Specifications Met | For Use On | Each | |
Wire Gauge | ||||||||||
Titanium-Nitride (TiN) Coated Cobalt Steel | ||||||||||
| 71 ga. | 0.026" | 1 1/4" | 0.38" | Round | 0.026" | Standard | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 00000 |
| 70 ga. | 0.028" | 1 1/4" | 0.38" | Round | 0.028" | Standard | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 0000 |
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 | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Drill Bit 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 | |||||||||
| 41 ga. | 0.096" | 1 13/16" | 0.38" | Round | 0.096" | 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.
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 | ||||||||||
Uncoated Carbide | ||||||||||
| 1/16" | 0.0625" | 1 1/2" | 0.38" | Round | 1/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | DIN 6537L | 0000000 | 00000 |
| 5/64" | 0.0781" | 1 1/2" | 0.38" | Round | 1/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | DIN 6537L | 0000000 | 0000 |
| 3/32" | 0.0938" | 1 1/2" | 0.38" | Round | 1/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | DIN 6537L | 0000000 | 0000 |
| 7/64" | 0.1094" | 1 1/2" | 0.38" | Round | 1/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | DIN 6537L | 0000000 | 0000 |
| 1/8" | 0.125" | 1 1/2" | 0.38" | Round | 1/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | DIN 6537L | 0000000 | 0000 |
Wire Gauge | ||||||||||
Uncoated Carbide | ||||||||||
| 52 ga. | 0.0635" | 1 1/2" | 0.38" | Round | 1/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | DIN 6537L | 0000000 | 0000 |
| 51 ga. | 0.067" | 1 1/2" | 0.38" | Round | 1/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | DIN 6537L | 0000000 | 0000 |
| 50 ga. | 0.07" | 1 1/2" | 0.38" | Round | 1/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | DIN 6537L | 0000000 | 0000 |
| 49 ga. | 0.073" | 1 1/2" | 0.38" | Round | 1/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | DIN 6537L | 0000000 | 0000 |
| 48 ga. | 0.076" | 1 1/2" | 0.38" | Round | 1/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | DIN 6537L | 0000000 | 0000 |
| 47 ga. | 0.0785" | 1 1/2" | 0.38" | Round | 1/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | DIN 6537L | 0000000 | 0000 |
| 46 ga. | 0.081" | 1 1/2" | 0.38" | Round | 1/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | DIN 6537L | 0000000 | 0000 |
| 45 ga. | 0.082" | 1 1/2" | 0.38" | Round | 1/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | DIN 6537L | 0000000 | 0000 |
| 44 ga. | 0.086" | 1 1/2" | 0.38" | Round | 1/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | DIN 6537L | 0000000 | 0000 |
| 43 ga. | 0.089" | 1 1/2" | 0.38" | Round | 1/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | DIN 6537L | 0000000 | 0000 |
| 42 ga. | 0.0935" | 1 1/2" | 0.38" | Round | 1/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | DIN 6537L | 0000000 | 0000 |
| 41 ga. | 0.096" | 1 1/2" | 0.38" | Round | 1/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | DIN 6537L | 0000000 | 0000 |
| 40 ga. | 0.098" | 1 1/2" | 0.38" | Round | 1/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | DIN 6537L | 0000000 | 0000 |
| 39 ga. | 0.0995" | 1 1/2" | 0.38" | Round | 1/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | DIN 6537L | 0000000 | 0000 |
| 38 ga. | 0.1015" | 1 1/2" | 0.38" | Round | 1/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | DIN 6537L | 0000000 | 0000 |
| 37 ga. | 0.104" | 1 1/2" | 0.38" | Round | 1/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | DIN 6537L | 0000000 | 0000 |
| 36 ga. | 0.1065" | 1 1/2" | 0.38" | Round | 1/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | DIN 6537L | 0000000 | 0000 |
| 35 ga. | 0.11" | 1 1/2" | 0.38" | Round | 1/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | DIN 6537L | 0000000 | 0000 |
| 34 ga. | 0.111" | 1 1/2" | 0.38" | Round | 1/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | DIN 6537L | 0000000 | 0000 |
| 33 ga. | 0.113" | 1 1/2" | 0.38" | Round | 1/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | DIN 6537L | 0000000 | 0000 |
| 32 ga. | 0.116" | 1 1/2" | 0.38" | Round | 1/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | DIN 6537L | 0000000 | 0000 |
| 31 ga. | 0.12" | 1 1/2" | 0.38" | Round | 1/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | DIN 6537L | 0000000 | 0000 |
Threaded-Shank Drill Bits
All have a 1/4"-28 threaded shank which installs directly into the threaded spindle on a compatible 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 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Thread Size | Point Style | Specifications Met | For Use On | Each | |
Inch—Short Length | |||||||||||
Black-Oxide High-Speed Steel | |||||||||||
| 11/64" | 0.1719" | 7/8" | 0.38" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 000000 |
| 3/16" | 0.1875" | 7/8" | 0.38" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 7/32" | 0.2188" | 7/8" | 0.38" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 1/4" | 0.25" | 7/8" | 0.38" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
Wire Gauge—Short Length | |||||||||||
Black-Oxide High-Speed Steel | |||||||||||
| 13 ga. | 0.185" | 7/8" | 0.38" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 12 ga. | 0.189" | 7/8" | 0.38" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 11 ga. | 0.191" | 7/8" | 0.38" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 10 ga. | 0.1935" | 7/8" | 0.38" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
Carbide Drill Bits for Stainless Steel and Nickel
Harder, stronger, and more wear resistant than cobalt 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. All are titanium nitride (TiN) coated for longer life and higher drilling speeds. They are short length, also known as screw machine and stub length, which provides maximum rigidity for drilling straighter holes than standard-length drill bits. The 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 | Each | |
Inch | ||||||||
Titanium-Nitride (TiN) Coated Carbide | ||||||||
| 1/8" | 0.125" | 2 1/8" | 0.38" | Round | 1/8" | Split | 00000000 | 000000 |
Carbide Drill Bits for Sheet Metal
Harder, stronger, and more wear resistant than high-speed 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. These bits have short flutes and a sturdy construction which prevent snagging that deforms sheet metal and thin-wall tubing.
For technical drawings and 3-D models, click on a part number.
Carbide Hole-Starting Drill Bits
Harder, stronger, and more wear resistant than cobalt 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 short flute and length keep these bits straight for accurate placement when starting holes that will be drilled deeper with a longer bit. Also known as spotting drill bits.
Bits with a 90° point angle are for centering and chamfering holes that will be followed by a smaller drill bit size.
Bits with a 120° point angle are for starting a hole that will be followed by a drill bit with a point angle from 90° to 118°.
Bits with a 140° point angle are for starting a hole that will be followed by a drill bit with a point angle from 118° to 135°.
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 | Each | |
90° Point Angle | |||||||||
Inch | |||||||||
Uncoated Carbide | |||||||||
| 3/8" | 0.375" | 2 1/2" | 0.38" | Round | 3/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
120° Point Angle | |||||||||
Inch | |||||||||
Uncoated Carbide | |||||||||
| 3/8" | 0.375" | 2 1/2" | 0.38" | Round | 3/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
140° Point Angle | |||||||||
Inch | |||||||||
Uncoated Carbide | |||||||||
| 3/8" | 0.375" | 2 1/2" | 0.38" | Round | 3/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |