Manufacturer of Workholding Products and Machine Tool Accessories. POWERHOLD strives to maximize its customer’s machine tool investments by providing engineered, cost effective, workholding solutions. Specializing in properly locating and holding a workpiece throughout the manufacturing process. - Provider of Jaw Chucks, Collet Chucks, Diaphragm Chucks, Swing Clamp Chucks for turn and grind. - Fixture components for HMC and VMC needs – Welded Tombstones, Indexer Risers, Trunion Tailstocks. - Builder of high precision standard and custom made live and dead centers.