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Compare material, finish, length class, and decimal size equivalents.
High-Speed Steel Step Drill Bits
Standard |
Shank | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equiv. | Overall Lg. | Type | Size | Drill Bit Point Type | Mfr. | Each | |||
Black Oxide | ||||||||||
| 1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", 1/2" | 0.125", 0.1563", 0.1875", 0.2188", 0.25", 0.2813", 0.3125", 0.3438", 0.375", 0.4063", 0.4375", 0.4688", 0.5" | 3 1/8" | Round/3-Flat | 1/4" | Standard | Milwaukee | 5910N11 | 000000 | ||
| 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8" | 0.1875", 0.25", 0.3125", 0.375", 0.4375", 0.5", 0.5625", 0.625", 0.6875", 0.75", 0.8125", 0.875" | 3" | Round/3-Flat | 3/8" | Standard | Milwaukee | 5910N14 | 00000 | ||
| 3/16", 1/4", 5/16", 3/8", 7/16", 1/2" | 0.1875", 0.25", 0.3125", 0.375", 0.4375", 0.5" | 3 1/8" | Round/3-Flat | 1/4" | Standard | Milwaukee | 5910N12 | 00000 | ||
| 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4" | 0.25", 0.3125", 0.375", 0.4375", 0.5", 0.5625", 0.625", 0.6875", 0.75" | 2 5/8" | Round/3-Flat | 3/8" | Standard | Milwaukee | 5910N13 | 00000 | ||
| 1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1 1/8", 1 1/4", 1 3/8" | 0.25", 0.375", 0.5", 0.625", 0.75", 0.875", 1", 1.125", 1.25", 1.375" | 3 1/8" | Round/3-Flat | 3/8" | Standard | Milwaukee | 5910N15 | 000000 | ||
| 3/8", 1/2" | 0.375", 0.5" | 2" | Round/3-Flat | 1/4" | Standard | Milwaukee | 5910N16 | 00000 | ||
| 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1" | 0.5", 0.5625", 0.625", 0.6875", 0.75", 0.8125", 0.875", 0.9375", 1" | 3 1/4" | Round/3-Flat | 1/2" | Standard | Milwaukee | 5910N17 | 00000 | ||
| 7/8", 1", 1 1/8", 1 1/4", 1 3/8" | 0.875", 1", 1.125", 1.25", 1.375" | 3" | Round/3-Flat | 3/8" | Standard | Milwaukee | 5910N18 | 000000 | ||
| 4.0 mm, 5.0 mm, 6.0 mm, 6.5 mm, 8.0 mm, 9.0 mm, 10.0 mm, 11.0 mm, 12.0 mm | 0.1575", 0.1969", 0.2362", 0.2559", 0.315", 0.3543", 0.3937", 0.4331", 0.4724" | 65 mm | Round/3-Flat | 6.4 mm | Standard | Milwaukee | 5910N19 | 00000 | ||
| 4.0 mm, 6.0 mm, 8.0 mm, 10.0 mm, 12.0 mm, 14.0 mm, 16.0 mm, 18.0 mm, 20.0 mm | 0.1575", 0.2362", 0.315", 0.3937", 0.4724", 0.5512", 0.6299", 0.7087", 0.7874" | 65 mm | Round/3-Flat | 6.4 mm | Standard | Milwaukee | 5910N21 | 00000 | ||
| 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" | 89 mm | Round/3-Flat | 9.53 mm | Standard | Milwaukee | 5910N22 | 000000 | ||
Titanium Nitride (TiN) Coated | ||||||||||
| 1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", 1/2" | 0.125", 0.1563", 0.1875", 0.2188", 0.25", 0.2813", 0.3125", 0.3438", 0.375", 0.4063", 0.4375", 0.4688", 0.5" | 3 1/4" | Hex | 1/4" | Standard | Black & Decker | 89315A41 | 00000 | ||
| 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8" | 0.1875", 0.25", 0.3125", 0.375", 0.4375", 0.5", 0.5625", 0.625", 0.6875", 0.75", 0.8125", 0.875" | 3" | Hex | 3/8" | Standard | Black & Decker | 89315A42 | 00000 | ||
| 3/16", 1/4", 5/16", 3/8", 7/16", 1/2" | 0.1875", 0.25", 0.3125", 0.375", 0.4375", 0.5" | 3 1/4" | Hex | 1/4" | Standard | Black & Decker | 89315A46 | 00000 | ||
| 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4" | 0.25", 0.3125", 0.375", 0.4375", 0.5", 0.5625", 0.625", 0.6875", 0.75" | 2 5/8" | Hex | 3/8" | Standard | Black & Decker | 89315A43 | 00000 | ||
| 1/4", 7/8", 1 1/8" | 0.25", 0.875", 1.125" | 3" | Hex | 3/8" | Standard | Bosch | 89315A45 | 000000 | ||
| 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1" | 0.5625", 0.625", 0.6875", 0.75", 0.8125", 0.875", 0.9375", 1" | 2 7/8" | Hex | 3/8" | Standard | Bosch | 89315A44 | 00000 | ||
Titanium Aluminum Nitride (TiAlN) Coated | ||||||||||
| 4.0 mm, 6.0 mm, 8.0 mm, 10.0 mm, 12.0 mm, 14.0 mm, 16.0 mm, 18.0 mm, 20.0 mm | 0.1575", 0.2362", 0.315", 0.3937", 0.4724", 0.5512", 0.6299", 0.7087", 0.7874" | 76 mm | Quick-Change Hex | 6.35 mm | Standard | Milwaukee | 89275A36 | 00000 | ||
| 4.0 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 | 0.1575", 0.5512", 0.6299", 0.7087", 0.7874", 0.8661", 0.9449", 1.0236", 1.1024", 1.1811" | 95 mm | Hex | 6.35 mm | Standard | Milwaukee | 89275A37 | 000000 | ||
Uncoated | ||||||||||
| 1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", 1/2" | 0.125", 0.1563", 0.1875", 0.2188", 0.25", 0.2813", 0.3125", 0.3438", 0.375", 0.4063", 0.4375", 0.4688", 0.5" | 3 1/4" | Hex | 1/4" | Standard | Black & Decker | 8841A21 | 00000 | ||
| 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8" | 0.1875", 0.25", 0.3125", 0.375", 0.4375", 0.5", 0.5625", 0.625", 0.6875", 0.75", 0.8125", 0.875" | 3" | Hex | 3/8" | Standard | Black & Decker | 8841A24 | 00000 | ||
| 3/16", 1/4", 5/16", 3/8", 7/16", 1/2" | 0.1875", 0.25", 0.3125", 0.375", 0.4375", 0.5" | 3 3/8" | Hex | 1/4" | Standard | Black & Decker | 8841A22 | 00000 | ||
| 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4" | 0.25", 0.3125", 0.375", 0.4375", 0.5", 0.5625", 0.625", 0.6875", 0.75" | 2 5/8" | Hex | 3/8" | Standard | Black & Decker | 8841A23 | 00000 | ||
| 1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1 1/8", 1 1/4", 1 3/8" | 0.25", 0.375", 0.5", 0.625", 0.75", 0.875", 1", 1.125", 1.25", 1.375" | 3 1/8" | Hex | 3/8" | Standard | Black & Decker | 8841A25 | 00000 | ||
| 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1" | 0.5625", 0.625", 0.6875", 0.75", 0.8125", 0.875", 0.9375", 1" | 2 1/2" | Hex | 3/8" | Standard | Black & Decker | 8841A33 | 00000 | ||
| 13/16", 7/8", 15/16", 1", 1 1/16", 1 1/8", 1 3/16", 1 1/4", 1 5/16", 1 3/8" | 0.8125", 0.875", 0.9375", 1", 1.0625", 1.125", 1.1875", 1.25", 1.3125", 1.375" | 2 1/8" | Hex | 3/8" | Standard | Black & Decker | 8841A34 | 000000 | ||
| 7/8", 1 1/8" | 0.875", 1.125" | 3" | Hex | 3/8" | Standard | Black & Decker | 8841A35 | 00000 | ||
| 4.0 mm, 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 | 0.1575", 0.2362", 0.315", 0.3937", 0.4724", 0.5512", 0.6299", 0.7087", 0.7874", 0.8661" | 76 mm | Hex | 10 mm | Standard | Black & Decker | 89275A14 | 00000 | ||
| 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" | 79 mm | Hex | 11.1 mm | Standard | Black & Decker | 89275A15 | 00000 | ||
| 6.0 mm, 8.0 mm, 10.0 mm, 12.0 mm, 14.0 mm, 16.0 mm, 18.0 mm | 0.2362", 0.315", 0.3937", 0.4724", 0.5512", 0.6299", 0.7087" | 64 mm | Hex | 10 mm | Standard | Black & Decker | 89275A13 | 00000 | ||
Multidiameter High-Speed Steel Step Drill Bits
Shank | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Drill Bit Size | Decimal Size Equiv. | Overall Lg. | Max. Drilling Dp. | Type | Size | Drill Bit Point Type | Mfr. | Each | |||
Black Oxide | ||||||||||||
| A | 1/8" to 9/16" | 0.125" to 0.5625" | 2 1/4" | 0.125" | Round/3-Flat | 1/4" | Standard | Unibor | 8910A11 | 000000 | ||
| A | 1/4" to 13/16" | 0.25" to 0.8125" | 2 3/4" | 0.125" | Round/3-Flat | 3/8" | Standard | Unibor | 8910A12 | 00000 | ||
| A | 5/8" to 1 3/16" | 0.625" to 1.1875" | 3" | 0.125" | Round/3-Flat | 3/8" | Standard | Unibor | 8910A13 | 00000 | ||
| A | 1" to 1 5/8" | 1" to 1.625" | 3 1/4" | 0.125" | Round/3-Flat | 3/8" | Standard | Unibor | 8910A14 | 000000 | ||
| B | 1 1/2" to 2 1/16" | 1.5" to 2.0625" | 2 3/4" | 0.125" | Round/3-Flat | 3/8" | — | Unibor | 8910A15 | 000000 | ||
Cobalt Steel Step Drill Bits
Shank | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equiv. | Overall Lg. | Type | Size | Drill Bit Point Type | Mfr. | Each | |||
Uncoated | ||||||||||
| 1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", 1/2" | 0.125", 0.1563", 0.1875", 0.2188", 0.25", 0.2813", 0.3125", 0.3438", 0.375", 0.4063", 0.4375", 0.4688", 0.5" | 3 1/4" | Hex | 1/4" | Standard | Black & Decker | 8841A51 | 000000 | ||
| 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8" | 0.1875", 0.25", 0.3125", 0.375", 0.4375", 0.5", 0.5625", 0.625", 0.6875", 0.75", 0.8125", 0.875" | 3" | 3-Flat | 3/8" | Standard | Black & Decker | 8841A53 | 00000 | ||
| 3/16", 1/4", 5/16", 3/8", 7/16", 1/2" | 0.1875", 0.25", 0.3125", 0.375", 0.4375", 0.5" | 3 3/8" | Hex | 1/4" | Standard | Black & Decker | 8841A52 | 00000 | ||
| 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4" | 0.25", 0.3125", 0.375", 0.4375", 0.5", 0.5625", 0.625", 0.6875", 0.75" | 2 5/8" | 3-Flat | 3/8" | Standard | Black & Decker | 8841A54 | 00000 | ||
| 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1" | 0.5625", 0.625", 0.6875", 0.75", 0.8125", 0.875", 0.9375", 1" | 2 1/2" | 3-Flat | 3/8" | Standard | Black & Decker | 8841A55 | 00000 | ||
| 7/8", 1 1/8" | 0.875", 1.125" | 3" | 3-Flat | 3/8" | Standard | Black & Decker | 8841A56 | 000000 | ||
Step Drill High-Speed Steel Bit Sets
No. of Pieces | Drill Bit Sizes Included | System of Measurement | Drill Bit Point Style | Container Type | Mfr. | Each | |||
|---|---|---|---|---|---|---|---|---|---|
Titanium Nitride (TiN) Coated | |||||||||
| 3 | 1 each in sizes 1/8"-1/2", 3/16"-1/2", 1/4"-3/4" | Inch | Standard Point | Plastic Pouch | Black & Decker | 89315A48 | 0000000 | ||
Uncoated | |||||||||
| 3 | 1 each in sizes 1/8"-1/2", 3/16"-1/2", 1/4"-3/4" | Inch | Standard Point | — | Black & Decker | 8841A32 | 00000 | ||
| 4 | 1 each in sizes 1/8"-1/2", 3/16"-1/2", 3/16"-7/8", 13/16"-1 3/8" | Inch | Standard Point | Plastic Case | Black & Decker | 8841A36 | 000000 | ||
Impact Wrench High-Speed Steel Multidiameter Drill Bit Sets
Shank | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equiv. | Overall Lg. | For Max. Material Thk. | Type | Size | Drill Bit Point Type | Mfr. | Each | |||
Titanium Nitride (TiN) Coated | |||||||||||
| 5/16" to 13/16", 5/16" to 1", 5/8" to 1 1/4" | 0.3125" to 0.8125", 0.3125" to 1", 0.6250" to 1.25" | 3 3/16", 3 3/4" | 1/8" | VersaDrive Hex | 7/16" | Stepped | Holemaker Technology | 9701N11 | 0000000 | ||
Impact Wrench High-Speed Steel Step Drill Bit Sets
Shank | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
No. of Pieces | Drill Bit Sizes Included | System of Measurement | Type | Size | Drill Bit Point Type | Point Angle | Container Type | Mfr. | Each | |||
Titanium Nitride (TiN) Coated | ||||||||||||
| 3 | 1 each of sizes ³⁄₁₆" to ½", ³⁄₁₆" to ⅞", ¼" to 1 ⅜" | Inch | VersaDrive Hex | 7/16" | Split | 118° | Foam Tray | Holemaker Technology | 9635N11 | 0000000 | ||
| 3 | 1 each of sizes 4 mm to 12 mm, 4 mm to 22 mm, 4 mm to 30 mm | Metric | VersaDrive Hex | 7/16" | Split | 118° | Foam Tray | Holemaker Technology | 9635N12 | 000000 | ||
Impact Wrench High-Speed Steel Multidiameter Drill Bits
Shank | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equiv. | Overall Lg. | For Max. Material Thk. | Type | Size | Drill Bit Point Type | Mfr. | Each | |||
Titanium Nitride (TiN) Coated | |||||||||||
| 5/16" to 13/16" | 0.3125" to 0.8125" | 3 3/16" | 1/8" | VersaDrive Hex | 7/16" | Stepped | Holemaker Technology | 9645N11 | 000000 | ||
| 5/16" to 1" | 0.3125" to 0.9375" | 3 3/4" | 1/8" | VersaDrive Hex | 7/16" | Stepped | Holemaker Technology | 9645N12 | 000000 | ||
| 5/8" to 1 1/4" | 0.625" to 1.25" | 3 3/4" | 1/8" | VersaDrive Hex | 7/16" | Stepped | Holemaker Technology | 9645N13 | 000000 | ||
Impact Wrench High-Speed Steel Step Drill Bits
Shank | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equiv. | Overall Lg. | Type | Size | Drill Bit Point Type | Point Angle | Mfr. | Each | |||
Titanium Nitride (TiN) Coated | |||||||||||
| 3/16", 1/4", 5/16", 3/8", 7/16", 1/2" | 0.1875", 0.25", 0.3125", 0.375", 0.4375", 0.5" | 2 3/4" | VersaDrive Hex | 7/16" | Split | 118° | Holemaker Technology | 9630N11 | 000000 | ||
| 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8" | 0.1875", 0.25", 0.3125", 0.375", 0.4375", 0.5", 0.5625", 0.625", 0.6875", 0.75", 0.8125", 0.875" | 3 1/2" | VersaDrive Hex | 7/16" | Split | 118° | Holemaker Technology | 9630N12 | 000000 | ||
| 1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1 1/8", 1 1/4", 1 3/8" | 0.25", 0.375", 0.5", 0.625", 0.75", 0.875", 1", 1.125", 1.25", 1.375" | 3 1/4" | VersaDrive Hex | 7/16" | Split | 118° | Holemaker Technology | 9630N13 | 000000 | ||
| 4 mm, 6 mm, 8 mm, 10 mm, 12 mm | 0.1575", 0.2362", 0.315", 0.3937", 0.4724" | 75 mm | VersaDrive Hex | 7/16" | Split | 118° | Holemaker Technology | 9630N14 | 00000 | ||
| 4 mm, 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 16 mm, 18 mm, 20 mm, 22 mm | 0.1575", 0.2362", 0.315", 0.3937", 0.4724", 0.5512", 0.6299", 0.7087", 0.7874", 0.8661" | 86 mm | VersaDrive Hex | 7/16" | Split | 118° | Holemaker Technology | 9630N15 | 000000 | ||
| 4 mm, 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 16 mm, 18 mm, 20 mm, 22 mm, 24 mm, 26 mm, 28 mm, 30 mm | 0.1575", 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" | 105 mm | VersaDrive Hex | 7/16" | Split | 118° | Holemaker Technology | 9630N16 | 000000 | ||






































