Ken-Tool's T38B patent-pending Valve Breaker designed for use with the aluminum wheel; It using a slide ram design to drive a heat-treated punch into the valve stem seat to easily pop the valve stem out of the rim after the wheel has been demounted. This allows the service technician to quickly remove the stem with the wheel on the floor. The slide ram is made from solid round steel bar stock to drive more energy into the valve stem to knock it out of the wheel quickly and efficiently.