1. Slicone rubber mixing with abrasive, HP shank(ISO 104): 2.35mm diameter(3/32" inch), mainly used in dental

laboratory.
2. Suitable for polishing porcelain, precious metal and semi-precious metal etc.
3. Coarse grit, Fine grit, Extra Fine grit and Ultra Fine grit.
4. Over 60 types, including all popular shapes, satisfy you any polishing requirements.