3.1″ 3-Jaw Self-Centering Chuck Body – Electroless Teflon Nickel Coated – 3/4-16 Thread

Three-jaw self centering chucks are designed so that all three jaws move together and automatically center round or hexagonal parts or stock to within a few thousandths of an inch. They are designed so that they can be used to clamp externally on bar stock or internally on tube stock. The jaws are reversible to accommodate larger stock.

It has an electroless Nickel-Teflon coating that has been applied to help prevent wear and corrosion. This special coating has been applied to all external and internal surfaces of the chuck (except for chuck jaws), significantly improving the life of the chuck. The chuck also opens and closes more smoothly due to the lubrication properties of Nickel-Teflon.