General description The Grinding Stone Set for Tool includes 42 pieces of high-quality abrasive mounted stones made from red corundum sand. These stones are designed for effective rust removal from metal castings without rusting or shedding like steel brushes. The rotary tool grinding stones provide excellent polishing effects with uniform grit, ensuring faster grinding with less dust, ultimately saving time. Technical specifications Material: Chrome corundum Shank size: 1/8 inch (3 mm) Sizes of grinding stones: 10 mm cylinder shape (14 pcs), 15 mm cylinder shape (14 pcs), 10 mm shape (14 pcs) Measurement allowed error: +/- 1-3 cm Compatibility and accessories Compatible with power drills and most rotary tools Usage Suitable for trimming, polishing, and grinding various materials including mold, metal, plastic, jade, and wood Effective for grinding and shaping tight spaces, including curved, flat, and slotted surfaces Other information