... discs, diamond resin grinding wheels, etc. 2. Workshop 2: tungsten carbide burrs: inch size and metric size, all standard rotary burrs ... products, etc. Company instruction:We have been engaged in tool exporting business since 1993. Our company was officially set ... jewellery tools and industrial tools, like dies, taps, hss or carbide end mills, counter sinks, step drills, cobalt drills, hobs, reamers, ...