Specification: 1.ST0201-D Flexible Metal Copper Resin Pads 2.size:4",5" 3.50/100/200/400# We have the following workshops ... resin grinding wheels, etc. 2. Workshop 2: tungsten carbide burrs: inch size and metric size, all standard rotary burrs 3. Workshop ... tools, like files, hole saws, grout removers, wires, etc. 5. Workshop 5: titanium tubes and stainless steel tubes used in food, chemical ...