... diamond resin grinding wheels, etc. 2. Workshop 2: tungsten carbide burrs: inch size and metric size, all standard rotary burrs 3. Workshop 3 ... We are exporting dental tools, jewellery tools and industrial tools, like dies, taps, hss or carbide end mills, counter sinks, step drills, ... kinds of DIY tools to Japan, Germany, the USA and Australia Tungsten Carbide Set for Stone dia.6/6.35mm x 20pcs/set ...