ER Collet System
ER Type 1 & 2 Backup Screws
| Type 1 Part Number |
Type 2 Part Number |
A | B | Thread Left Hand |
|---|---|---|---|---|
| 029-909 | - | 5/16 | 1/4" | 5/16-24 |
| - | BS-09 | 3/16 | 9/16" | 9/16-18 |
| - | BS-10 | 3/16 | 9/16" | 11/8-16 |
| - | BS-11 | 5/16 | 9/16" | 11/16-16 |
| - | BS-18 | 3/16 | 9/16" | 13/16-16 |
| BS-20 | - | 7.32 | 3/8" | 7/16-20 |
