Which Is Self Centering Chuck?

A self-centering chuck, also known as a scroll chuck, uses dogs (usually called jaws), interconnected via a scroll gear (scroll plate), to hold onto a tool or workpiece. ... Sometimes this type of chuck has four or six jaws instead of three.

Which type of chuck is known as universal jaw chuck?

Self centering chucks are also known as universal chucks. These chucks grip circular or hexagonal objects and are used when relatively accurate centering is the desired outcome. 4 jaw or 6 jaw chucks will provide a better hold on a workpiece.

What is a 4 jaw chuck used for?

4 jaw independent chucks have four separate jaws that can be adjusted to grip onto a workpiece. This offers significant advantages. You can use a 4 jaw chuck lathe to safely hold square, hexagonal, wound, and irregular-shaped workpieces, with the independent movement of the jaws enabling accurate adjustment.