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50 NMTB Shell Mill Holders Standard Shell Mill Holders |
| Product Number | Size Number | A | B | C | D | E | H | J | Key Screw Dimensions | Washer | Drive Key | Arbor Screw |
| 50ST3 | 50-3/4C5/8 | .750 | 3/8-24 | 5/16 | 11/16 | 5-1/8 | 1"-8 | 5/8 | #10-32 x 1/2 | 1746 | 1675 | 1372 |
| 50ST4 | 51C7/8 | 1.000 | 1/2-20 | 3/8 | 11/16 | 5-1/8 | 1"-8 | 7/8 | #10-32 x 1/2 | 1747 | 1677 | 1371 |
| 50ST5 | 51-1/4C7/8 | 1.250 | 5/8-18 | 1/2 | 11/16 | 5-1/8 | 1"-8 | 7/8 | #10-32 x 3/4 | 1720 | 1685 | 1370 |
| 50ST6 | 51-1/2C7/8 | 1.500 | 3/4-16 | 5/8 | 15/16 | 5-1/8 | 1"-8 | 7/8 | 1/4-20 x 3/4 | 1696 | 1694 | 1369 |
| 50ST8 | 52C7/8 | 2.000 | 3/4-16 | 3/4 | 15/16 | 5-1/8 | 1"-8 | 7/8 | 3/8-16 x 7/8 | 1667 | 1795 | 1368 |
| 50ST10 | 52-1/2C7/8 | 2.500 | 1"-14 | 1 | 1-1/8 | 5-1/8 | 1"-8 | 7/8 | 3/8-16 x 7/8 | 1648 | 1629 | 1368 |
| Arbor Nomenclature |