Accessories for lathe-system PD 230/E and milling systems PF 230 and FF 230. All accessories meet the high German quality standards Four jaw chuck The 4 jaws are adjusted independently. This feature allows clamping unsymmetrical pieces such as ovals, squares or other odd-shaped work pieces. The jaws are reversible and hardened, giving a capacity of 3 5/32" (80 mm). The work piece must be centered manually.