Stone fabricators and DIY pros, this is a handy kit for creating and finishing beautiful edges on granite and marble. The set includes: One B5 (3/16\ or 5mm) Demi/Half Bullnose diamond router bit with a 5/8\-11 thread arbor. It's vacuum brazed with coarse diamond for shaping the edge. PLUS, you get a full set of 44 pieces of 4\ diamond polishing pads (grits range from 50 all the way up to a buffing pad), and one 4\ rubber pad holder. Remember: the rubber holder must be used with a grinder speed under 5000 RPM for safety. This all-in-one kit lets you take a raw slab edge from rough shaping through to a high-gloss, professional-looking demi-bullnose finish. Perfect for countertop edges, vanity tops, or custom stone projects. Great value for the number of pads and the quality bit included!