Model WP-V1275 - Valve Lapping Tool with Vacuum Suction CupThis effective tool was designed to hold valves during lapping operations, and is great in a variety of applications as a small hand held suction cup tool. 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. We offer up to three sizes of suction cups 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.