Chuck Insert M30 x 3.5RH

This threaded Insert converts RIKON’s 4-Jaw Chucks that require inserts to fit onto lathes with M30 x 3.5 RH threaded spindles. The Insert’s internal threads are precision machined to M30 x 3.5 RH specifications for perfect chuck lathe mounting and running-true use. Insert’s external threads install into the backs of RIKON insert-type chuck bodies only.