Chuck with included key allows precise control of valve stem tightness for optimal results
Compatible with 1/4 inch (6.4 mm) diameter lapping compound for effective surface smoothing
Operates at 24 rpm for consistent, controlled lapping motion
Suitable for both valve lapping and sanding neck corks using an E8 sax neck holder
Durable construction designed for repeated use in professional and DIY settings
Summarized by Shop
The N98 Valve Lapping Machine is extremely useful even if your shop doesn't rebuild valves. After a bent valve has been straightened, and is working, first be sure the valve guide or star is removed. Then:
Install the valve stem in the chuck, included with a chuck key so you can control the tightness.
