For Hand Lapping Valves.Thick handles for easy lapping. 21100 has 1 1/8 and 1 3/8 inch diameter cups for larger valves. 21200 has 5/8 inch and 13/16 inch diameter cups for smaller valves.
For Hand Lapping Valves.Thick handles for easy lapping. 21100 has 1 1/8 and 1 3/8 inch diameter cups for larger valves. 21200 has 5/8 inch and 13/16 inch diameter cups for smaller valves.