Material: rubber ; Package Include: Cylinder shaped grinding heads (4 mm) * 1 ; Cylinder shaped grinding heads (6 mm) * 1 ; Cylinder shaped grinding heads (8 mm) * 1 ; Cylinder shaped grinding heads (10 mm) * 1 ; Cylinder shaped grinding heads (12 mm) * 1 ; Bullet shaped grinding heads (4 mm) * 1 ; Bullet shaped grinding heads (6 mm) * 1 ; Bullet shaped grinding heads (8 mm) * 1 ; Bullet shaped grinding heads (10 mm) * 1 ; Bullet shaped grinding heads (12 mm) * 1 Good buffing wheel for drill, work great for cleaning and polishing jewelry after soldering. Useful rotary tool, work great for polishing up and rounding the rough edges of rings. Recommended for polishing kits, work great for smoothening the rough surface of glass and glass products. Popular rotary bits, work great for cleaning rustiness off steel, removing light pitting, softening hard edges on parts, and cleaning up stone ground surfaces., Manufacturer: shuojiaheng