What is a Chuck Jaw?

 

A chuck jaw, also known as a lathe chuck jaw or simply a jaw, is a component of a lathe chuck. A lathe chuck is a device used in metalworking to securely hold and rotate a workpiece while it is being machined or shaped. The chuck jaws are the movable components of the chuck that grip the workpiece.

Chuck jaws typically come in sets consisting of (3) pieces.  The jaws are often serrated or equipped with other gripping mechanisms to provide a secure hold on the workpiece during machining operations.

Chuck jaws are available in different configurations to accommodate specific applications. Some common types include the standard two-piece jaws, hard jaws, soft jaws, and step jaws. The specific type of chuck jaw used depends on factors such as the workpiece material, size, and shape, as well as the machining requirements.

By adjusting the chuck jaws, the machinist can center and secure the workpiece in the lathe chuck, ensuring stability and accuracy during the machining process. To see a selection of Chuck Jaws, click on the following link: Rovi Chuck Jaws

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