, rolls, tapered cone points, PSA discs, bore polishers, cartridge rolls, spiral rolls, cross pads, resin fiber discs, quickchange discs, mini and regular flap wheels. GRINDMASTER III...", 1-1/2", 2", 3" and 4". In grit sizes from 24 through 320. Micro-mini and full size mounted GRINDMASTER III wheels in sizes 3/8x3/8" mounted on 1/8" shank through 3x2" on a 1/4..." shank. Grit sizes A/O 60 through 320 grit. GRINDMASTER III miniflap discs for grinding, polishing and finishing are available in diameters 2", 2-1/2" and 3". Zirc grit sizes 36-120...