... discs, diamond resin grinding wheels, etc. 2. Workshop 2: tungsten carbide burrs: inch size and metric size, all standard rotary burrs ... ,diamond grinding wheels,diamond profile wheelsdiamond vacuum brazed toolstile bits, marble bits,hand padsdiamond files,diamond sintered carving burrsflexible polishing pads ... Japan, Germany, the USA and Australia Ti Cross Type, Carbide Tipped drill Bit 5pcs/set