For Hand Lapping Valves. Thick handles for easy lapping. Has 1 1/8"" and 1 3/8"" diameter cups for smaller valves.
This tool is used with lapping compound to lap the valves so they match the valve seats. Commonly used when doing cylinder head work or overhauling lawn mower engines.
1 1/8" and 1 3/8" diameter cups, for hand lapping.