Oneway 3222 #4 Profiled Jaws for Stronghold Chuck

Oneway Model #3222,These jaws are the largest of Oneway top jaws. They have even more mass and size necessary for large bowls and vases. The profiled jaws provide maximum gripping power with minimal damage to the piece,Jaw Dimensions in the CLOSED position: Compression Mode 4 1/4" Expansion Mode 4 7/8",Jaw Dimensions in the OPEN position: Compression Mode 5 3/4" Expansion Mode 6 1/2"