| MODEL | ER20 COLLET CHUCK | RUN OUT (TIR) | 0.0003″ | NECK DIAMETER D | 1.30″ |
| HOLDER TYPE | ER COLLET HOLDER | CLAMPING RANGE | 1/16-1/2″ | CLAMPING SIZE | ER20 |
| SHANK TYPE | LATHE CHUCK | SHANK ATC | Groove | FLANGE SIZE | 1.50″ |
| BALANCE | MAX 12,000RPM | SHANK DIAMETER | 3/4″ | COOLANT | YES |
| OVERALL LENGTH7 | 2.68″ | SHANK LENGTH | 1.38 | SHANK WITH FLAT | NO |
This is TTS groove version
