Polishing points have silicon carbide, silicon dioxide and aluminum oxide abrasive compound in rubber binder for a smooth finish on precious metals, stone and ceramics. Wheels are 23 x 1 mm (.905″ x .039″). Flames and cylinders are 3 x 7 mm (.118″ x .275″). Includes one of each shape per grit. Grits are: Blue – Extra Fine, White – Ultra Fine, Brown – Fine, Black – Coarse 3/32″ (2.35 mm) shank Mounted Points in nine different shapes 5,000 –12,000 RPM Max Speed
