Bison Cast Iron Independent Chuck - 4 Jaw - 1 Piece Jaw (Front Mount) - 630mm End Mill Holders The AcuRea nano chrome coating

The AcuRea nano chrome coating reduces wear and enhances hardness

This model is built for 16mm shank tooling and measures 120mm long

It provides consistent tolerances and surface quality across steels

This combination delivers a dependable drilling solution that supports faster cycles

1 radius enables clean corner relief and better surface finish

Bison Cast Iron Independent Chuck - 4 Jaw - 1 Piece Jaw (Front Mount) - 630mm End Mill Holders The AcuRea nano chrome coatingThe Bison 4304 series Cast Iron 4 Jaw Independent Chuck is a rugged front mount workholding solution designed for machinists, engineers, and hobbyists who need a secure grip on round and irregular shapes. Supplied with a set of solid reversible jaws, this 630mm chuck lets you reposition each jaw independently for flexible, precise clamping of odd shaped pieces without changing jaws. Manufactured in Poland, these chucks are renowned for exceptional