... .Item No:ST0307 2.Tungsten Carbide Set 3.size:dia.6/6.35mm x 20pcs/set We have the following workshops: 1. Workshop ... , diamond resin grinding wheels, etc. 2. Workshop 2: tungsten carbide burrs: inch size and metric size, all standard rotary burrs 3. Workshop 3 ... exporting all kinds of DIY tools to Japan, Germany, the USA and Australia Tungsten Carbide Set for Stone dia.6/6.35mm x 20pcs ...