Description: Powerful 520W motor. High speed for efficient grinding and polishing. Lightweight design. Extended front housing to access recessed work. External brush caps. Large auto return lock-on side switch. 25000rpm for efficient grinding and polishing. Die not included. Specification: Chuck Size: 6mm. No-Load Speed: 25000/min. Overall Length: 359mm. Power Input: 520W. Standard Accessories: 2 wrenches. Voltage: 230/110V. Weight: 1.7kg. Wheel Diameter: 25mm.