Sanding / Grinding / Sharpening Sanding accessories make it possible to smooth surfaces, shape curves and other odd shapes. you can use the sanding bits to remove rust from metal surfaces, remove paint and shape wood, fiberglass and rubber. Carving / Engraving / Routing There are 10 different diamond burr bits to meet your DIY creations & 3 HSS rotary burrs to handle a variety of model in a high precision form. tool to carve, engrave or route any material strong enough to be shaped. Cutting There are 3 types mini cutting discs: 1. 545 Diamond cutting disc for stone and glass; 2. HSS circular saw blades for wood and plastic; 3. Fiberglass cut off wheel for soft metal. Have high work efficiency, perfect cutting effect and wide cutting range. Safe & Easy High Stability & Quick Change rotary tool accessories / Accepts 1.6mm - 3.2mm shank accessories Great Gift for DIY Enthusiasts All accessories are compatible with most rotary tools or mini electric grinders / die grinders. Also come with an injection case, easy for storage.