Item Type: Grinder Backing Pad_x000D_Material: ABS + Rubber_x000D_Chassis Diameter: Approx. 125mm/4.9in_x000D_Color: Red and Black_x000D_Purpose: Used for Polishing Disc of Angle Grinder Sanding Machine_x000D_Chassis Thread Specification: 2 x M14_x000D_Maximum Speed: 12500RPM_x000D_Interface: Hook and Loop Fastener (Hook and Loop Type) 1Multi Purpose: The backing pad of grinder is suitable for the polishing disc of angle grinder and sander, and can be used for high speed grinding and flat surface polishing. 2Good Adhesion: This grinder chassis adopts a hook and loop design, which can reduce dust accumulation and make the sandpaper highly adhere to the polishing disc. 3Stable Performance: The screw has high hardness, and the hook and loop backing pad rotates smoothly without shaking when in use, ensuring the safe operation of your machine. 4High Quality Material: Sander hook and loop is made of high quality ABS and rubber material, which is not easy to break and can be used for many times and long term. 5Professional: 125mm/4.9in chassis diameter, professional grinding machine rubber chassis, built in installation thread, easy and fast installation, saving time.1 xGrinder Backing PadManual measurement, please allow 0.04?0.12in error._x000D_Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.