Emery Pin Hole Sanding DiscsThese are thin paper backed discs with silicone carbide glue bonded on one side. Specially for use in sanding and smoothing gold jewelry. Speed max. 30,000 rpm. Use with screw mandrels. 7/8 Fine GRIT FOR PERFECT FINISH 100 PIECES IN THE BOX Weight 7/8 oz. 22gm Brand: EC MOORE Country/Region of Manufacture: United States
