Usage Tips:[Package includes]2pcs Drill Bit Sharpener,6 pcs Brown Corundum Grinding Wheel,2pcs Wrench,reducing the need for frequent replacements and saving you both time and money [Sturdy and Durable]Made of ABS plastic and brown corundum grinding wheel, High hardness, rustproof, solid and durable, keep bits sharp and ready for use. [Application scope] The grinder drill bit set sharpener adopts corundum grinding wheel, suitable for grinding 2-12.5mm iron drill bits, using 1/4 inch standard hexagonal shank, can be used with electric drills to keep the bits sharp and ready to use [Applicable Type] The diamond drill bit sharpener is mainly used for grinding iron drills, not suitable for other high hardness drills.Give your old blunt drill bits a second life and improve the utilization of drill bits [Easy to carry]Compact and portable drill grinding tool,Portable tools that you can carry around and don't take up space in your backpack Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:blue Material:plastic Package Contents: 2 x drill sharpeners 6 x grinding wheels Only the above package content, other products are not included. Note: Light reflection 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.