【Material】: The bit sharpener is made of pp material, which is sturdy, wear resistant, not easy to deform, and has a long service life 【Directly Replace】: Grinder bit sharpener, high reliability and performance, you can directly replace old or damaged parts 【High Performance】: Professional bit grinding attachment, sturdy and stable performance, has grooves for various sizes, you to easily grind bit at different angles, improve your work efficiency 【Easy To Install】: The grinder attachment is easy to install and does not require complex steps to complete the installation 【Product Size】: The bit sharpener size is 13.5 cm x 5 cm/5.31 inch x 1.97 inch, compact, and makes it great for outdoor carry. Applicable drill range: 4 mm-12 mm/0.16inch-0.47 inch Specification: Material: Pp Size Chart: 13.5 cm x 5 cm/5.31 inch x 1.97 inch Total length: 14.5 cm/5.71 inch Package Includes: 1x Grinder Bit Sharpener Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.