Size	18 inch
Material	Mild Steel

A four-jaw hand-operated independent chuck is a lathe chuck with four individually adjustable jaws, each turned by a wrench. This allows it to securely grip irregular shapes like square, hexagonal, or round workpieces, and also enables both inside and outside clamping by reversing the jaws. It is a versatile tool, ideal for complex or non-cylindrical parts that a self-centering chuck cannot hold.