Features: Designed for removal of stubborn or seized ribbed crankshaft and auxiliary pulleys. Suitable for use on crankshafts, alternators, air conditions unit, and Water pumps Allows removal without the risk of damaging the pulley in restricted engine bays. Low profile arms allow use in restricted engine bays. Max opening jaws 6.3" (160mm) Close: 1-1/4" (30mm) Specifications • overall Length: 210mm • Height: 80mm • Low profile • Suitable for most vehicles • Hardened Steel • Black phosphate finish • Knurled screws .