[EASILY INCREASE THE LIFE OF DRILL BITS]- Forget the days of trying to find the correct angle by hand or accidentally tapering the edge of your tools. Improve the utilization of drill bits, solve the troubles you have been buying drill bits, save time and save money. [STURDY AND ]- Made of ABS plastic and brown corundum grinding wheel, High hardness, rustproof, solid and ,self-centering point, do not need assistant center drilling or center punching. [Warm-Tips]- The grinding wheel currently equipped with this product is brown corundum grinding wheel, so the product is mainly used for grinding iron-type drill bits. Other high-hardness drill bits are not suitable for use, and the loss be relatively large. [Reliable and Efficient]- Compact and portable drill grinding tool, Use this drill bit sharpener with your power drill to keep bits and ready for use. Specifications: Type: Corundum Drill Bit Sharpener Fit for: 2-12.5mm Iron-based Bits Weight: 136g Colour:Blue Material:ABS Plastic + Brown Corundum Grinding Wheel Size:about 185*40*32mm Package Contents: 1 x Corundum Drill Bit Sharpener 3 x Brown Corundum Grinding Wheel 2 x Wrench Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.