Features Versatile Application: Designed for use with various materials like foam, wool, and microfiber, providing flexibility with hook and loop systems for easy disc changes High Oscillation Speed: Capable of operating at up to 15,000 RPM, ensuring consistent and smooth performance for effective sanding and polishing tasks Durable PU Construction: Made from high-quality PU material, this backing pad balances rigidity and flexibility, enhancing longevity and performance across applications Robust Frequency Resistance: Engineered with steel struts in the center hub, this backing plate can endure high frequencies while delivering a flawless finish Universal Compatibility: Standardized size allows this backing pad to fit most air sanders, making it ideal for woodworking, garages, and industrial settings Features: 1、High-speed steel grinding heads are characterized by high hardn, high wear resistance, high heat resistance and impact resistance, so you don't have to worry about it being damaged. 2、Can be easily screwed onto the electric grinder and the chain and serrated blades can be easily smoothed. 3、 proc manufacturing, long life, easy to apply and use. 4、Equipped with a wrench and 3 pcs of grinding rod to facilitate your works. 5、These attachment will make your work more convenient and labor-saving. Specification: Item Type:Sharpening Attachment Material:Steel Weight: 50 g / 1.76 oz(approx.) Grinding Rod Shank Length:45mm / 1.77in Thread:M19 Wrench Length:71mm / 2.8in Package List: 1 x Grinding Plate 1 x Wrench 3 x Grinding Rod Note: Please allow 1-3mm differs due to manual measurement. Package List 1 x Grinding Plate 1 x Wrench 3 x Grinding Rod