Features: Durable Material: Our woodworking rotating file is made of high-quality metal material, which is wear-resistant, not easy to rust and break, sturdy and durable. WIDELY USED: For grinding, polishing, shaping and polishing wood surfaces. Great for home DIY tools and general constructionengineering use. Compatible with most cordless and cordless drills. Ideal for punching holes in a variety of materials including steel, brass, wood, plastic, copper, fiberglass, and PVC to name a few. If you have any questions, please contact us in time. We will provide you with better products and services. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: A3 steel Size: As shown Package List: 6PCS x Woodworking Rotating Files Bits