Polishing Grinding Wheels Wool/ Sesame/ Rubber/ Cowhide Grinding Tools- Mixed Set 3mm Shank-100 Pieces Material: Sanding, wool, sesame, rubber, cowhide heads Application: works great for carving, polishing or gunsmithing, like jewelry,jade,agate,gemstones,glass,watches,crystal,car,motorcycle,bike,feed ramps or trigger jobs etc Best effect used with electric drills, grinders or Dremel rotary tools.Make your polished goods more cleaner and brighter. (Cylinder & Taperedshaped) Including 20pcs for each item pink sanding, white wool, sesame grinding, cowhide polishing and green rubber. Dia: 12mm,10mm,8mm,6mm,4mm.