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About Drill Bits
Compare material, finish, length class, and decimal size equivalents.
High-Speed Steel Drill Bits
Jobbers' Length Round Shank | Short Length Round Shank |
Extended Length Round Shank | Standard |
Shank | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equiv. | Overall Lg. | Max. Drilling Dp. | Type | Size | Drill Bit Point Type | Each | |||
Jobbers' Length | ||||||||||
Black Oxide | ||||||||||
| 53 Ga. | 0.0595" | 1 7/8" | 0.78" | Round | 0.0595" | Standard | 2901A228 | 00000 | ||
Titanium Nitride (TiN) Coated | ||||||||||
| 53 Ga. | 0.0595" | 1 7/8" | 0.78" | Round | 0.0595" | Standard | 29045A811 | 0000 | ||
Uncoated | ||||||||||
| 53 Ga. | 0.0595" | 1 7/8" | 0.78" | Round | 0.0595" | Standard | 30585A68 | 0000 | ||
Short Length | ||||||||||
Black Oxide | ||||||||||
| 53 Ga. | 0.0595" | 1 5/8" | 0.53" | Round | 0.0595" | Standard | 2896A568 | 0000 | ||
Titanium Nitride (TiN) Coated | ||||||||||
| 53 Ga. | 0.0595" | 1 5/8" | 0.63" | Round | 0.0595" | Standard | 29425A287 | 0000 | ||
Uncoated | ||||||||||
| 53 Ga. | 0.0595" | 1 5/8" | 0.63" | Round | 0.0595" | Standard | 8947A208 | 0000 | ||
Extended Length | ||||||||||
Black Oxide | ||||||||||
| 53 Ga. | 0.0595" | 3" | 1.66" | Round | 0.0595" | Standard | 3096A368 | 0000 | ||
Titanium Nitride (TiN) Coated | ||||||||||
| 53 Ga. | 0.0595" | 3" | 1.75" | Round | 0.0595" | Standard | 28965A826 | 0000 | ||
Drill Bit Size Gauges
For System of Measurement | For Use With | For Drill Bit Size | Wd. | Ht. | Thk. | Material | Color | Mounting Hole Dia. | Each | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Wire Gauge | Drills/Taps | 60 Ga., 59 Ga., 58 Ga., 57 Ga., 56 Ga., 55 Ga., 54 Ga., 53 Ga., 52 Ga., 51 Ga., 50 Ga., 49 Ga., 48 Ga., 47 Ga., 46 Ga., 45 Ga., 44 Ga., 43 Ga., 42 Ga., 41 Ga., 40 Ga., 39 Ga., 38 Ga., 37 Ga., 36 Ga., 35 Ga., 34 Ga., 33 Ga., 32 Ga., 31 Ga., 30 Ga., 29 Ga., 28 Ga., 27 Ga., 26 Ga., 25 Ga., 24 Ga., 23 Ga., 22 Ga., 21 Ga., 20 Ga., 19 Ga., 18 Ga., 17 Ga., 16 Ga., 15 Ga., 14 Ga., 13 Ga., 12 Ga., 11 Ga., 10 Ga., 9 Ga., 8 Ga., 7 Ga., 6 Ga., 5 Ga., 4 Ga., 3 Ga., 2 Ga., 1 Ga. | 2 1/2" | 6 1/2" | 5/64" | Steel | Silver | 1/8" | 8986A68 | 000000 |
Cobalt Steel Drill Bits
Shank | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equiv. | Overall Lg. | Max. Drilling Dp. | Type | Size | Drill Bit Point Type | Each | |||
Jobbers' Length | ||||||||||
Titanium Nitride (TiN) Coated | ||||||||||
| 53 Ga. | 0.0595" | 1 7/8" | 0.88" | Round | 0.0595" | Standard | 27995A671 | 00000 | ||
Uncoated | ||||||||||
| 53 Ga. | 0.0595" | 1 7/8" | 0.78" | Round | 0.0595" | Standard | 3033A268 | 0000 | ||
Short Length | ||||||||||
Titanium Nitride (TiN) Coated | ||||||||||
| 53 Ga. | 0.0595" | 1 5/8" | 0.23" | Round | 0.0595" | Standard | 28765A918 | 0000 | ||
Uncoated | ||||||||||
| 53 Ga. | 0.0595" | 1 5/8" | 0.5" | Round | 0.0595" | Standard | 28765A833 | 0000 | ||
Drill Bit Guides
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For Drill Bit Size | For Drill Bit Size Decimal Equiv. | Lg. | Wd. | Ht. | Material | Each | ||
|---|---|---|---|---|---|---|---|---|
| 3/64", 1/16", 5/64", 3/32", 7/64", 1/8", 10 Ga., 21 Ga., 25 Ga., 29 Ga., 30 Ga., 33 Ga., 36 Ga., 37 Ga., 38 Ga., 40 Ga., 43 Ga., 45 Ga., 47 Ga., 50 Ga., 53 Ga. | 0.0469", 0.0595", 0.0625", 0.07", 0.0781", 0.0785", 0.082", 0.089", 0.0938", 0.098", 0.1015", 0.104", 0.1065", 0.1094", 0.113", 0.125", 0.128", 0.136", 0.1495", 0.159", 0.1935" | 3 5/8" | 5/8" | 1/2" | Steel | 9550T17 | 000000 |
Carbide Drill Bits
Expanded-Shank Carbide Drill Bits
Jobbers' Length | Standard |
Shank | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equiv. | Overall Lg. | Max. Drilling Dp. | Type | Size | Drill Bit Point Type | Each | |||
Jobbers' Length | ||||||||||
Titanium Nitride (TiN) Coated | ||||||||||
| 53 Ga. | 0.0595" | 1 1/2" | 0.31" | Expanded Round | 1/8" | Four Facet | 6415N144 | 000000 | ||
Titanium Aluminum Nitride (TiAlN) Coated | ||||||||||
| 53 Ga. | 0.0595" | 1 1/2" | 0.3" | Expanded Round | 1/8" | Standard | 2598N137 | 00000 | ||
Uncoated | ||||||||||
| 53 Ga. | 0.0595" | 1 1/2" | 0.39" | Expanded Round | 1/8" | Standard | 2841A55 | 0000 | ||
Short-Flute High-Speed Steel Drill Bits
Carbide Drill Bits for Hardened Steel
Chip-Clearing High-Speed Steel Drill Bits
Shank | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equiv. | Overall Lg. | Max. Drilling Dp. | Flute Type | Type | Size | Drill Bit Point Type | Each | |||
Jobbers' Length | |||||||||||
Uncoated | |||||||||||
| 53 Ga. | 0.0595" | 1 7/8" | 0.78" | High Helix | Round | 0.0595" | Standard | 2912A229 | 00000 | ||
Left-Hand High-Speed Steel Drill Bits
Jobbers' Length Round Shank | Standard |
Shank | Each | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equiv. | Overall Lg. | Max. Drilling Dp. | Type | Size | Drill Bit Point Type | 1-11 | 12-Up | |||
Jobbers' Length | |||||||||||
Uncoated | |||||||||||
| 53 Ga. | 0.0595" | 1 7/8" | 0.75" | Round | 0.0595" | Standard | 3024A278 | 00000 | 00000 | ||
Carbide Drill Bits for Carbon Fiber, Fiberglass, and Graphite
Shank | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equiv. | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Angle | Drill Bit Point Type | Bit Style | Each | |||
Jobbers' Length | ||||||||||||
Uncoated | ||||||||||||
| 53 Ga. | 0.0595" | 1 1/2" | 0.6" | Round | 0.0595" | 140° | Brad | Fluted | 2828A846 | 000000 | ||
Extensions for Round-Shank Drill Bits
For Drill Bit | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Size | Size Decimal Equiv. | Shank Size | Shank Size | Overall Lg. | OD | Material | Each | |||
For Wire Gauge Drill Bits | ||||||||||
One-Piece Extensions | ||||||||||
| 53 Ga. | 0.0595" | 0.06" | 3/16" | 4" | 3/16" | Steel | 2864A244 | 000000 | ||
M2 High-Speed Tool Steel Rod Sets
Includes | No. of Pieces | Dia. Tolerance | Mechanical Finish | Each | ||
|---|---|---|---|---|---|---|
| Sizes 1-60 and a metal index case | 60 | -0.0002" to 0" | Precision Ground | 2952A6 | 0000000 |
Undersized Hardened Multipurpose M2 High-Speed Tool Steel Rods
Dia. | Dia. Tolerance | Drill Bit Size | Lg. | Yield Strength, psi | Hardness | Mechanical Finish | Each | ||
|---|---|---|---|---|---|---|---|---|---|
| 0.0595" | -0.0002" to 0" | 53 Ga. | 1 5/8" | 261,000 | Rockwell C60 (Extra Hard) | Precision Ground | 3009A301 | 00000 | |
| 0.0595" | -0.0002" to 0" | 53 Ga. | 1 7/8" | Not Rated | Rockwell C60 (Extra Hard) | Precision Ground | 3009A268 | 0000 | |
| 0.0595" | -0.0002" to 0" | 53 Ga. | 3" | 261,000 | Rockwell C60 (Extra Hard) | Precision Ground | 3009A306 | 0000 |






























