Steel serrated soft jaws to suit a 4 Inch power chuck. Jaws are manufactured from 080M15 Steel. Good Quality of of material allows for machining with a good finish.
For clamping different materials for the optionally three different clamping inserts are available. The use of teeth results in a high surface pressure whereby maximum holding forces are achieved. In the case of wear of the Mastergrip clamping claws ...