Drill Bit Size Identifiers
Letter
Measure drill bit sizes with these identifiers.
| For System of Measurement | For Use With | For Drill Bit Size | Wd. | Ht. | Thick. | Material | Color | Mounting Hole Dia. | Each | |
| Letter | Drills | A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z | 2 1/2" | 6 1/2" | 5/64" | Steel | Silver | 1/8" | 0000000 | 000000 |
Center-Locating Punches for Unthreaded Holes
Fit these through existing holes and mark the center of the hole in a second workpiece.
Letter
| Letter Size | Dia. Tolerance | Lg. | Punch Material | Grip Texture | Each | |
| A | -0.003" to -0.002" | 5" | Steel | Smooth | 00000000 | 00000 |
| B | -0.003" to -0.002" | 5" | Steel | Smooth | 00000000 | 0000 |
| C | -0.003" to -0.002" | 5" | Steel | Smooth | 00000000 | 0000 |
| D | -0.003" to -0.002" | 5" | Steel | Smooth | 00000000 | 0000 |
| E | -0.003" to -0.002" | 5" | Steel | Smooth | 00000000 | 0000 |
| F | -0.003" to -0.002" | 5" | Steel | Smooth | 00000000 | 0000 |
| G | -0.003" to -0.002" | 5" | Steel | Smooth | 00000000 | 0000 |
| H | -0.003" to -0.002" | 5" | Steel | Smooth | 00000000 | 0000 |
| I | -0.003" to -0.002" | 5" | Steel | Smooth | 00000000 | 0000 |
| J | -0.003" to -0.002" | 5" | Steel | Smooth | 00000000 | 0000 |
| K | -0.003" to -0.002" | 5" | Steel | Smooth | 00000000 | 0000 |
| L | -0.003" to -0.002" | 5" | Steel | Smooth | 00000000 | 0000 |
| M | -0.003" to -0.002" | 5" | Steel | Smooth | 00000000 | 0000 |
| N | -0.003" to -0.002" | 5" | Steel | Smooth | 00000000 | 0000 |
| O | -0.003" to -0.002" | 5" | Steel | Smooth | 00000000 | 0000 |
| P | -0.003" to -0.002" | 5" | Steel | Smooth | 00000000 | 0000 |
| Q | -0.003" to -0.002" | 5" | Steel | Smooth | 00000000 | 0000 |
| R | -0.003" to -0.002" | 5" | Steel | Smooth | 00000000 | 0000 |
| S | -0.003" to -0.002" | 5" | Steel | Smooth | 00000000 | 0000 |
| T | -0.003" to -0.002" | 5" | Steel | Smooth | 00000000 | 0000 |
| U | -0.003" to -0.002" | 5" | Steel | Smooth | 00000000 | 0000 |
| V | -0.003" to -0.002" | 5" | Steel | Smooth | 00000000 | 0000 |
| W | -0.003" to -0.002" | 5" | Steel | Smooth | 00000000 | 0000 |
| X | -0.003" to -0.002" | 5" | Steel | Smooth | 00000000 | 0000 |
| Y | -0.003" to -0.002" | 5" | Steel | Smooth | 00000000 | 0000 |
| Z | -0.003" to -0.002" | 5" | Steel | Smooth | 00000000 | 0000 |