DRILAX Diamond Grinding Burr Drill Bits Sets For Rotary Tools <p>Shank Size: 1/8 inch</p> <p>Total Length: 1-3/4 inch</p> <p>Diamond burr tools for grinding, engraving, cutting lines, polishing, carving, glass engraving</p> <p>Electroplated diamond grinding</p> <p>Various shapes and sizes</p> <p>Quantity:20Pcs</p> Diamond Grinding Burr Drill Bits Sets Compatible with Dremel Rotary Jewelry Making Tools 1/8 inch Shank 20 pieces Set