Hardinge, Inc. says its new air-operated 5C collet block is fail-safe. The design does not require air during the cutting process. This results in maintained concentricity without downtime or waste if loss of air should occur. The Hardinge Collet Block operates on a single cylinder for collet and workpiece installation. After setup, a unique spring design holds the workpiece at a 1760 lb. optimum 5C drawbar force. Collet loading capacity is adjustable, the modular unit bolts to a standard subplate, will connect to a single airline and uses a wide array of standard 5C work holding products.