6mm Shank 14mm Cylinder Head Cow Leather Polishing Grinding Mounted Point 100pcs. Shank Diameter : 6mm / 0.24";. This kind of cow leather grinding head is more better that rubber grinding head. Material : Cow leather ,resin,corundum sand, Metal;. Uses: The grinding can be polished to eliminate grinding, and do not burn jade pieces, you can quickly precision polishing any rough surface raw jade, jade pieces to be processed after the final finish can reach 8..
