Material: The drills bit sharpener is made of plastic material, which is sturdy, wear resistant, not easy to deform, and has a long service lifeDirectly Replace: Grinder drills bit sharpener, high reliability and performance, you can directly replace old or damaged partsHigh Performance: Professional drills bit grinding attachment, sturdy and stable performance, has grooves for various sizes, you to easily grind drills bit at different angles, improve your work efficiencyEasy To Install: The grinder attachment is easy to install and does not require complex steps to complete the installationProduct Size: The drills bit sharpener size is 13.6 cmx7 cm/5.35 inchx2.76 inch, compact, and makes it great for outdoor carry. Applicable drill range: 4-12 mm/0.16-0.47 inch Specification: Material: Plastic Size Chart: 13.6 cmx7 cm/5.35 inchx2.76 inch Package Includes: 1x Drills Bit Sharpener (with gloves) Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.