1、Extended Die Grinder: The extended die grinder is easy to use, with high concentric speed, smoothly operation, no yaw grinding. 2、2 Collets: Equipped with 3mm and 6mm collets, which have high precise, not easy to wear, you can choose to use according to different situation. 3、Speed Adjustment: You can freely control the speed by adjusting the intake air volume, cope with different working conditions. 4、Multi Function: This grinder can be used for metal grinding, polishing, rust removal, tire repair, wood and craft processing, welding spot removal, grinding, etc. 5、Multi Purpose: The extended die grinder is suitable for mold factory, tire factory, shoe factory, metal processing industry, etc.