Crude Sand Diamond Burr Grinding Head Cylinder Concave For Bead Shaping 3-25mm

Usage: It is used for initial sanding and molding, probably around 120 Grit. Suitable for amber, beeswax, jadeite, agate and other round beads grinding and trimming. Coarse sand grind molding, fine sand grind scratches.

Fine Sand Diamond Burr Grinding Head Cylinder Concave For Bead Shaping 3-25mm

Usage: It is used for grinding and polishing, probably around 500 Grit. Suitable for amber, beeswax, jadeite, agate and other round beads grinding and trimming. Grind out the specific shape with coarse sand, then sand and polish with fine sand so that you get a mirror finish.