The Ken-Tool T38B Metric Valve Breaker, No. 35938, is designed to remove corroded valve stems quickly from smaller 10mm valve stem holes, which are common on heavy duty aluminum, alloy and European-style wheels. The patented valve breaker features a specially designed, heat-treated, spring-loaded steel punch that measures 9mm in diameter, allowing it to remove nickel-plated, steel and brass valve stems without contacting the wheel. The T38B, measuring 45” and weighing 16 lbs, utilizes a pinch-preventing rubber safety grip, high-grade steel tube construction and a solid steel ram bar. The Metric Valve Breaker Repair Kit, No. 35937, includes a new punch, spring and retention pin.