Heavy duty 46 grit silicon carbide. For sharpening tungsten carbide-tipped (TCT) tools. Suitable for use on ferrous metals and alloys. 31.75mm (1-1/4") bore with 12.7mm (1/2"), 15.88mm (5/8"), 19.05mm (3/4") and 25.4mm (1") reducing bushes. For use with all 150mm bench grinders.
