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Bison Bial chucks are made from Forged Steel and Cast Iron; all of the working surfaces are induction hardened and ground. The result is a rugged chuck that glides easily,stable, with durable parameters, and the most effective price/performance ratio in the market - BISON Workholding. Biason Bial certified quality inspectors thoroughly check the gripping force and run-out to ensure accuracy for our Standard and Premium line. BISON products fall well below the required DIN standards for all of our sizes

Bison Bial continue to remain the uncontested global leader when it comes to price/performance ratios in high quality workholding products!