System of Measurement System of Measurement |
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Size Size |
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Decimal Size Equivalent Decimal Size Equivalent | Show |
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Decimal Size Equivalent Decimal Size Equivalent | Hide |
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For Use On For Use On |
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Bit Style Bit Style |
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 | Spiral Flute |
 | Multidiameter |
 | Multi-Tooth |
Shank Type Shank Type |
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| Round | Reduced Round |
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| Hex | Morse Taper |
Finish Finish |
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Material Material |
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Individual/Set Individual/Set |
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Point Style Point Style |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Length Class Length Class |
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| Reduced Shank Length |
Flute Direction Flute Direction |
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| Right Hand |
Point Angle Point Angle |
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Morse Taper Number Morse Taper Number |
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Specifications Met Specifications Met |
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Drill Bit Decimal Size Equivalents
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About Drill Bits
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1/2" Diameter Reduced-Shank Drill Bits
The shank has a smaller diameter than the tip, allowing you to drill large holes with machines that have small-capacity chucks. Also known as Silver and Deming bits, they have a 1/2” diameter shank.
For technical drawings and 3-D models, click on a part number.
Shank | Drill Bits | ||||||||
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| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | For Use On | Point Style | Each | |
Metric | |||||||||
Black-Oxide High-Speed Steel | |||||||||
| 26.0 mm | 1.0236" | 152mm | 53.3mm | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 000000 |
High-Speed Steel Morse Taper-Shank Drill Bits
Install the Morse taper shank directly into the tapered spindle on machines such as drill presses and lathes.
For technical drawings and 3-D models, click on a part number.
Morse Taper | ||||||||||
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| Size | Decimal Size Equivalent | No. | Overall Lg. | Max. Drilling Dp. | Shank Type | Point Style | Specifications Met | For Use On | Each | |
Metric | ||||||||||
Black-Oxide High-Speed Steel | ||||||||||
| 26.0 mm | 1.0236" | 3 | 286mm | 113mm | Morse Taper | Standard | DIN 345 | Steel, Iron, Stainless Steel | 00000000 | 000000 |
Smooth-Finish Drill Bits for Wood
Bore clean, flat bottom holes in soft wood, veneer, and laminates. The center guide point prevents the bit from wandering. Also known as Forstner bits.
For technical drawings and 3-D models, click on a part number.
High-Speed Steel Multidiameter Drill Bits
Steps with progressively larger diameters let you drill a range of sizes with one bit. Also known as step drills.
Black-oxide drill bits produce less friction than uncoated drill bits.
Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated drill bits and black-oxide drill bits.
For technical drawings and 3-D models, click on a part number.
Shank | ||||||||||
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| Size | Decimal Size Equivalent | No. of Sizes | Overall Lg. | For Max. Material Thick. | Type | Size | Point Style | For Use On | Each | |
Metric | ||||||||||
Black-Oxide High-Speed Steel | ||||||||||
| 6.0 mm, 8.0 mm, 10.0 mm, 12.0 mm, 14.0 mm, 16.0 mm, 18.0 mm, 20.0 mm, 22.0 mm, 24.0 mm, 26.0 mm, 28.0 mm, 30.0 mm, 32.0 mm, 35.0 mm | 0.2362", 0.315", 0.3937", 0.4724", 0.5512", 0.6299", 0.7087", 0.7874", 0.8661", 0.9449", 1.0236", 1.1024", 1.1811", 1.2598", 1.378" | 15 | 89mm | 2mm | Hex | 6.4mm | Standard | Steel, Hardened Steel, Tool Steel, Iron, Nickel, Aluminum, Brass, Bronze, Plastic | 0000000 | 0000000 |
Titanium-Nitride (TiN) Coated High-Speed Steel | ||||||||||
| 5.0 mm, 7.5 mm, 10.0 mm, 13.0 mm, 16.0 mm, 19.0 mm, 21.0 mm, 23.0 mm, 26.0 mm, 29.0 mm, 31.0 mm, 33.0 mm, 35.0 mm | 0.1968", 0.2953", 0.3937", 0.5118", 0.6299", 0.748", 0.8268", 0.9055", 1.0236", 1.1417", 1.2205", 1.2992", 1.378" | 13 | 79mm | 4mm | Hex | 11.1mm | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 00000000 | 000000 |
Uncoated High-Speed Steel | ||||||||||
| 5.0 mm, 7.5 mm, 10.0 mm, 13.0 mm, 16.0 mm, 19.0 mm, 21.0 mm, 23.0 mm, 26.0 mm, 29.0 mm, 31.0 mm, 33.0 mm, 35.0 mm | 0.1968", 0.2953", 0.3937", 0.5118", 0.6299", 0.748", 0.8268", 0.9055", 1.0236", 1.1417", 1.2205", 1.2992", 1.378" | 13 | 79mm | 4mm | Hex | 11.1mm | Standard | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 00000000 | 00000 |
| 20.0 mm, 22.0 mm, 24.0 mm, 26.0 mm, 28.0 mm, 30.0 mm, 32.0 mm, 34.0 mm | 0.7874", 0.8661", 0.9449", 1.0236", 1.1024", 1.1811", 1.2598", 1.3386" | 8 | 54mm | 5mm | Hex | 11.1mm | Standard | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 00000000 | 00000 |