Air Die Grinder is ideal for many automotive and. industrial high-speed grinding applications. It can be used to clean dies, rotors, backing plates and brake pad mounts, or to grind valve seats, dress welds and enlarge holes. Suitable for most grinding work, de-burring, and polishing metal components. Ideal for getting into those deep recessed places due to the extended shank. Contoured throttle lever with positive self-locking, prevents accidental starting of motor. Free speed 20,000rpm. Air pressure 90psi. Air consumption 3 cfm (85 l/min). Overall length 319mm. Body size 42mm square. Collet size 1/4". TPT-524