Chuck Jaws

Chuck jaws are replaceable clamping components fitted to a lathe chuck to grip and locate the workpiece during turning operations. They are essential for secure holding, accurate centering, and repeatable setup, helping reduce slip and vibration so you can maintain tight tolerances and consistent surface finish.

In this collection you’ll find jaws for different chuck configurations, including internal and external gripping styles, as well as sets intended for replacement or performance upgrades. Options include hardened steel jaws for wear resistance and long service life, with designs that support reliable engagement with the chuck’s serrations/ways and stable clamping under load. Choose proven solutions from Tos and Bison for dependable fit and machining performance.

These products are used by machine shops, production teams, and QC specialists across metalworking applications—from general turning to precision work on shafts, rings, and custom parts—where clamping security directly impacts safety, runout control, and dimensional accuracy.