Features: 1. Ergonomic: This pneumatic grinder is ergonomically friendly, small and lightweight design that is easy to operate. 2.High precision collet: This pneumatic grinder has high precision collet, easy access to tight spaces, sturdy and durable. Self-locking head pressure plate switch: pneumatic grinder with self-locking head pressure plate switch and self-locking head pressure plate switch for more safety. 4. Exhaust design: This pneumatic grinder is designed with exhaust port for fast exhaust and low cylinder temperature. 5.Applicable scenarios: Our pneumatic grinders are suitable for removing rust, woodworking polishing, tire polishing, polishing and polishing for factory and garage. How to Use: After taking out the product, please follow the instructions. Specifications: Item Type: Pneumatic Carving Grinder Model: WH 8186C Material: Aluminum Alloy Rotation Speed: 25000 RPM Collet Size: Approx. 3mm / 0.12 inch, 6mm / 0.24 inch Package List: 1 x Pneumatic Die Grinder 1 x User Manual 2 x Wrench 2 x Accessories Note: Integrated easy to use safety lock throttle lever prevents accidental operation.