Gripper jaws can be a great way of getting round part movement in roughing operations, this is by use of teeth in the jaw which bite into the material. This biting can also be a great way to get round problems using black bar or other rough material....
Aluminium cross tennon pie jaws to suit a 10 Inch power chuck. Jaws are manufactured from 6061 Aluminium. Pie jaws create a full wrap around to reduce the potential for marking and deformation.