The CRL Valve Grinder Lifter provides an effective way to hold valves during lapping operations. Lapping is the most effective means of touching up slightly burned valves and seats, to restore like-new performance at minimum expense. The spring-loaded vacuum pump, built into the handle, provides a vacuum reserve for long-lasting hold and serves as a leakage indicator, to lessen unexpected release. A single stroke of the plunger attaches the vacuum pad firmly to the valve. When the pad has sealed properly, the plunger returns only part of the way. Further movement indicates leakage and the need to clean the pad face and valve head for a better seal. The Valve Grinder's design and construction assure long service: The one-piece handle is made of a material resistant to grease and the corrosives normally associated with gasoline engine repair, while the vacuum pads are molded from tough, durable rubber. Three sizes of pads are available to cover most small engine and automotive valves. The set comes in a see-through, easy-to-hang package that makes it easy to find when you need it. Each kit includes: a Valve Grinder with 2 vacuum pads (Cat. No. VG0750 and VG1250). Interchangeable pads make the Valve Grinder suitable for use with most standard valves.