All-in-One Tooling Setup: Includes a lapping tool attachment and five suction plates, designed for effective valve maintenance across different engine types. Durable and reliable: Made from robust materials that resist wear and deformation; easy to install without risking damage to vehicle components. Precise valve correction: Operation at 1000 to 1250 rpm helps efficiently remove subsurface valve damage and improve alignment in guides. Easy, step-by-step use: Apply a light coat of motor lapping compound, press the suction cup firmly onto the valve head, then rotate with a drill until the finish is correct. Flexible compatibility: Suitable for a range of engine types with five suction plates to accommodate different valve sizes and head geometries. Practical applications: Ideal for valve maintenance during cylinder head service in automotive engines; pre-reassembly valve seating and alignment after grinding; finishing valve faces in other internal combustion engines.