NSI Rapid Z-DRUMS Center Water Feed with Top Bearing Guide

For the 1 inch DRUM -A 1″ diameter vacuum brazed drum wheel, specifically designed for use with the Sink BULL™. This is the bit you need to clean out the tight corner radius on square sinks.  Available in two grits with a top bearing to ride along the template. The coarse grit cleans up the extra material left by the Rapid Z™-CUT and the fine grit further smooths the surface leaving it ready to polish. The height matches the Rapid Z™-CUT so height adjustments on the Sink BULL are not required between bits. It is center water feed compatible (note: the Sink BULL™ does not use center water feed). Fits 5/8-11 arbor threads height matched to the Rapid Z™-CUT Center water feed compatible Maximum RPM 8500 Coarse grit (30/40 grit) Fine Grit = approximately 120/150 grit For the 3 inch DRUM -A 3″ diameter vacuum brazed drum wheel, specifically designed for use with the Sink BULL™. Available in two grits with a top bearing to ride along the template. The coarse grit cleans up the rough surface