The Buck Chuck model independent chucks provide rugged versatility and a quick change jaw system. The independent jaws can be adjusted individually, making the PSA ideal for both cylindrical and irregular shaped workpieces. The spindle housing and jaws are made from hardened steel, guaranteeing a long service life and high precision.

The jaws are made according to American Standard Tongue and Groove and are equipped with a quickchange jaw system. The base jaws are divided with a thread for the adjustable spindle and stepped reversible top jaws. To turn the top jaw on the base jaw, simply release the jaw mounting bolt.