MATERIAL: Diamond Grinding Head & Steel Shank.
WIDELY USE:Diamond Grinding Burr Drill works on stone, glass, metal, hardwood, tile, ceramics, marble, granite and other hard materials.
MULTIFUNCTION:Suitable for Woodworking,carving,engraving metal polishing and drilling.
COMPATIBILITY:1/8 inch(3mm)shank fit for dremel tool and other rotary tool.
PACKAGE CONTENT:20 x Diamond Grinding Burr.