1、SHARPENING IN 5 SECONDS: This multipurpose drill bit sharpener is an ideal tool for sharpening drill bits quickly and easily. Powered by electric drills and is suitable for all types of drill bits such as high speed steel, carbide, twist, and cobalt, can also be used for other tools such as kitchen knife and more 2、CUTTERS SHARPENER: This multifunctional sharpener is practical, specially designed for sharpening plane cutter, drill, scissor, cutter, etc. The sharpener is the replacement for different tools and gadgets 3、EASY TO USE: This drill sharpener is easy to use and require no special skills or knowledge. Equipped with two diamond grinding wheels which enable you to sharpen and grind two bits at the same time. There are three bit holder sizes available of 2‑4mm, 4‑8mm, 8‑16mm 4、DURABLE AND EFFICIENT: The sharpener is made of excellent material, which is durable to use. Diamond grinding wheel is wear resistant and not easy to deform, Help you quickly sharpen the drill bit, improve work efficiency and save energy 5、COMPACT AND PORTABLE: The drill sharpener is lightweight and compact, easy to store and transport. A great gift to husbands, fathers, and craftsmen. Suitable for a variety of electric drill, recommended for more than 16V electric drill, realize better effect Item Type: Multipurpose Drill Bit Grinding Sharpener Material: ABS Drill Bit Holder Size: Approx. 2 ~ 4mm / 0.08 ~ 0.16in, 4 ~ 8mm / 0.16 ~ 0.31in, 8 ~ 16mm / 0.31 ~ 0.63in Application: For various drills, recommended for drills above 16V for better results 1 x Grinding Head 3 x Drill Bit Holder 2 x Grinding Discs