The J.H. Williams 3-K-2 Knurling Rotary Tool Holder is a specialized accessory designed to hold knurling tools in a rotary-tool setup. Model 3-K-2 identifies this specific holder and it is intended to position and secure knurling tooling for knurling operations. As a J.H. Williams product, it serves as the mounting component that enables stable, repeatable knurling work on compatible machines.
