Review on 💡 Lisle 21100 Large Valve Lapper: Effortless Precision for Valve Grinding by Vic Alexander

I used to buy a "regular" size valve lapping tool from an auto parts store to lap the valves in a Toyota Camry 5SFE engine. The smaller cup was too big and kept slipping off the valves. The large pot of this "small" lapping tool fits perfectly and almost never slips. With this I was able to quickly clean and grind the valves on a couple of cylinders.