Corundum Resisting Drill Polishing Grinder Wheel Tool Drill Bit Sharpener

High quality: Made of high-quality ABS plastic and brown corundum grinding wheel, High hardness, rustproof, solid and durable,self-centering point, do not need assistant center drilling or center punching.
Suitable for: Great for fast drilling, tapping, etc. And Fast replacement composite cone, uses drill edged principle.
Applicable type：This diamond Drill Bit Sharpening Tool is mainly used for grinding iron drills, other high hardness drills are not suitable for use.