Profile: National Distribution, Inc. specializes in tooling and screw machine replacement parts. Our product line includes adapters, attachments, bearings, boring bars, box tools, bushings, cam blanks, rolls and pins, carbide tooling, chasers, collapsing tapes, collet tubes, cutting tools and drill bushings. Our roll away clutch body is replaceable with wear plates. It is hardened & ground with wear plates fit in 4 recessed pockets.