"3 Jaw Scroll Chuck featuring steel body construction to increase rigidity and improved durability. The JN-RA series have short tapers built-in, therefor adapters are not needed. Chucks are supplied with standard hard jaws with soft jaws available if...
"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...