This tool separates pistons in brake callipers quickly ready to instal new brake pads. Pushes the piston back squarely without damage to the piston face. An essential tool for retracting the brake piston to allow fitment of new brake pads. Suitable for use on most cars. Can be used on single piston sliding callipers, twin opposing piston callipers etc. Normally operated with the supplied T-bar but can also be used with a 1/2" ratchet. Capacity from 0 - 2 1/2" (0 - 65mm) Can be used on all vehicle types and models. Suitable for most ATE / Bendix / Delco / Brembe and Girling callipers.