Made with resilient rubber. Angled expansion slots through the heavy rubber rim allow the drum to expand when rotated, thereby locking the finishing belt in place. Belts can be quickly changed merely by stopping the machine and slipping off the old belt and sliding on the new one. In use, the resilient drum surface flexes to the gemstone's contour to quickly remove grinding flats - yet convex drum concentrates the cutting action so that scratches are quickly removed even from flat surfaces. Each drum is supplied with telescopic bushings to fit shafts 1/2", 5/8", 3/4" pr 1" diameter.
Available in 6" x 1-1/2", 6" x 2-1/2", and 8" x 3" sizes. Please specify size when inquiring.
