Material: Made of high-quality plastic and corundum grinding wheel material which has High-end hardness, rustproof, solid, durable, self-centering point and does not need assistant center drilling or center punching.
Application: This diamond Drill Bit Sharpening Tool is mainly used for grinding iron drills
Lightweight and Compact: Lightweight and compact size. The drill sharpening tool is easy to carry
Great for fast drilling, tapping,etc:  Fast replacement composite cone, uses drill edged principle
Great Effect: With simple structure and great material, the grinding wheel drill bit has good sharpening effect, saving much effort
