Description 1. Material: high speed steel 2. Weight: about 41g 3. Sharpening attachment length: about 70mm 4. Ruler length: about 70.09mm 5. Easy for apply and use 6. It can be easily screwed onto an electric grinder and can easily sharpen chains and serrated blades 7. High-speed steel grinding heads have features of high hardness, high wear resistance, high heat resistance and impact resistance, so dont have to worry about it being damaged
