Mostly suitable for the production of parts with top concentricity.It is for universal use,hawever particularly advantageous for grinding machines, indexing heads and lathes:
● adjusting accuracy within 0.005mm
● repeatabillity 0.015mm
The clamped workpiece is adjusted to the required concentricity by mean of4 or8 radially arranged adjusting screws Standard accessories:
● 1 set of hard reversible top jaws
● 1 wrench
● 1 hexagonal key
● 1 set of mounting screws.

| Chuck Size | D (mm) | D₁ (mm) | D₂ (mm) | D₃ (mm) | H (mm) | H₁ (mm) | h (mm) | z - d | Code No - Solid Jaws (Steel body) | Code No - 2 - Piece Jaws (Cast iron body) |
|---|
| 125 | 127 | 60.33 | 112.73 | 33 | 98.11 | 58 | 16.7 | 3 - M6 | PA33 - 125 | PA33 - 125A |
| 160 | 152.5 | 79.37 | 135.70 | 39 | 107.9 | 64 | 17.5 | 6 - M6 | PA33- 160 | PA33 - 160A |
| 200 | 210 | 120.65 | 190.5 | 60 | 126.3 | 79.3 | 18.6 | 6 - M10 | PA33- 200 | PA33 - 200A |
| 250※ | 254 | 161.90 | 111.13 | 72 | 142.8 | 89 | 20.4 | 6 - M12 | PA33 - 250 | PA33 - 250A |
| 315※ | 305 | 200.79 | 133.35 | 83 | 165.8 | 102.5 | 20.4 | 6 - M12 | PA33 - 315 | PA33 - 315A |
| 380※ | 381 | 299.237 | 171.45 | 108 | 209 | 136.2 | 27.7 | 6 - M16 | PA33 - 380 | PA33 - 380A |