Specification: 1.Item No:ST0304 2.Diamond Burrs 30pcs/set 3.grit:45# /150# 4.shank dia.2.35/3.17 We have the following ... discs, diamond grinding discs, diamond resin grinding wheels, etc. 2. Workshop 2: tungsten carbide burrs: inch size and metric size, all standard ... sinks, step drills, cobalt drills, hobs, reamers, etc. We have 18 years of experience in exporting all kinds of DIY tools ...