Durable metal construction and electric drive for reliable valve lapping and maintenance Key benefits Built to last: All-metal components provide durability for regular use in professional garages or home workshops. Faster, more consistent results: Electric operation simplifies valve lapping compared with fully manual methods, helping you achieve even seating and finish with less effort. Wide compatibility: Five interchangeable cups cover common valve sizes so the set works across many engines and valve dimensions. Ready to use: The package supplies a complete valve lapping tool set so you have the right tools on hand for a variety of valve-surfacing tasks. What’s included Complete electric valve lapping/grinding tool set Interchangeable cup sizes: 16 mm, 20 mm, 30 mm, 35 mm, 45 mm How it solves problems Eliminates inconsistent manual lapping by delivering controlled, repeatable motion for better valve-to-seat contact. Reduces time and effort during engine maintenance by providing an electric alternative to hand-powered tools. Covers multiple valve diameters with one kit, avoiding the need to buy separate tools for different engines. Function and compatibility Function: Electric valve lapping tool for resurfacing and seating motor valves. Material: Robust metal construction designed for durability in workshop use. Size compatibility: Use the 16/20/30/35/45 mm cups to match a wide range of valve stems and seats. Typical applications (use scenarios) Routine engine service: Reconditioning valve seats and valves during scheduled maintenance to restore compression and reduce leaks. Cylinder head repair: Re-lapping valves after valve job or valve seat replacement to ensure proper sealing. DIY engine rebuilds: Professional-grade toolset for hobbyists working on classic cars, motorcycles, or small engines that require reliable valve seating. Practical notes Select the cup that matches the valve diameter, apply appropriate lapping compound, and use steady, controlled strokes with the electric tool to achieve uniform results. Designed for both professional mechanics and home users who need a dependable, versatile valve-lapping solution.