Screw Machine Drills - Letter Sizes
Letter Sizes-HSS & Cobalt
135° Self-Centering Split Point
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| Letter Sizes | Black Oxide 135° Split Point |
Cobalt HSS 135° Split Point |
||
| Dia. | Dec Equiv |
OAL | Part Number | Part Number |
| A | .2340 | 2-7/16 | PTD-A-SHBS | PTD-A-SCGS |
| B | .2380 | 2-1/2 | PTD-B-SHBS | PTD-B-SCGS |
| C | .2420 | 2-1/2 | PTD-C-SHBS | PTD-C-SCGS |
| D | .2460 | 2-1/2 | PTD-D-SHBS | PTD-D-SCGS |
| E | .2500 | 2-1/2 | PTD-E-SHBS | PTD-E-SCGS |
| F | .2570 | 2-5/8 | PTD-F-SHBS | PTD-F-SCGS |
| G | .2610 | 2-5/8 | PTD-G-SHBS | PTD-G-SCGS |
| H | .2660 | 2-11/16 | PTD-H-SHBS | PTD-H-SCGS |
| I | .2720 | 2-11/16 | PTD-I-SHBS | PTD-I-SCGS |
| J | .2770 | 2-11/16 | PTD-J-SHBS | PTD-J-SCGS |
| K | .2810 | 2-11/16 | PTD-K-SHBS | PTD-K-SCGS |
| L | .2900 | 2-3/4 | PTD-L-SHBS | PTD-L-SCGS |
| M | .2950 | 2-3/4 | PTD-M-SHBS | PTD-M-SCGS |
| N | .3020 | 2-13/16 | PTD-N-SHBS | PTD-N-SCGS |
| O | .3160 | 2-15/16 | PTD-O-SHBS | PTD-O-SCGS |
| P | .3230 | 2-15/16 | PTD-P-SHBS | PTD-P-SCGS |
| Q | .3320 | 3 | PTD-Q-SHBS | PTD-Q-SCGS |
| R | .3390 | 3 | PTD-R-SHBS | PTD-R-SCGS |
| S | .3480 | 3-1/16 | PTD-S-SHBS | PTD-S-SCGS |
| T | .3580 | 3-1/16 | PTD-T-SHBS | PTD-T-SCGS |
| U | .3680 | 3-1/8 | PTD-U-SHBS | PTD-U-SCGS |
| V | .3770 | 3-1/4 | PTD-V-SHBS | PTD-V-SCGS |
| W | .3860 | 3-1/4 | PTD-W-SHBS | PTD-W-SCGS |
| X | .3970 | 3-5/16 | PTD-X-SHBS | PTD-X-SCGS |
| Y | .4040 | 3-5/16 | PTD-Y-SHBS | PTD-Y-SCGS |
| Z | .4130 | 3-3/8 | PTD-Z-SHBS | PTD-Z-SCGS |