CostEffective Solution The Valve Lapping Tools allow you to effectively remove stubborn deposits from cylinder head valves at home, saving you from expensive repair shop fees and giving you professionallevel results. Ergonomic Design Featuring a nonslip solid wood ergonomic handle, our valve lapping tools are designed to withstand highintensity repair work, ensuring comfort and control during use for extended periods. Durable and Reliable Built to last, our valve grinding tools come in two lengths 8.6 and 8 to cater to various applications, providing the durability needed for any automotive project. Versatile Suction Cup Sizes Each valve lapping kit includes 12 suction cups in 4 different sizes 0.6, 0.8, 1.1, 1.4, making it compatible with the vast majority of valve types available on the market for maximum versatility. BILITOOLS is a professional brand of auto repair toolsaccessories. If you want the perfect tools to maintain, repair or clean your vehicle, we have what you need.