Hitachi G18DBAL/W4 18v Brushless Angle Grinder with Paddle Switch Body Only Best in class cutting performance per charge FEATURES Over-current Protection prevents burnout by monitoring a current in the battery and motor Lightweight and compact body with a slim grip and small gear cover for easy handling and efficient operation \"AUTO Mode\" Function for reducing noise and vibration in no-load operation Mode change switch With the \"AUTO Mode\" switched on, the speed automatically shifts between high and low speeds depending on the load. That allows more effective operation Best suited for interior constructions in noise-sensitive areas Dust & water resistant construction remarkably increases durability By resin-coating the circuit boards, the electronic parts are protected from dust and water Equipped with fine mesh filters that significantly improve the dust resistance. The toolless removable filter makes its maintenance easier Kickback Protection System monitors a sudden drop in the motor rotation speed and stops the motor quickly to protect the reaction force (kickback) Anti-Restart Protection prevents the power tool from starting up when a battery is inserted with the switch left on, for accident avoidance Soft Start allows comfortable operation by reducing the reaction force on start up Large two stage paddle switch (dead man action) SPECIFICATION Wheel Diameter: 115mm (4 - 1/2\") / 125mm (5\") Bore Hole Diameter: 22.23mm (7/8\") Spindle Thread: M14 x 2 Voltage: 18v No Load Speed: 9,000/min. AUTO Mode No Load Speed : 5,500/min. Overall Length: 326mm (12 - 27/32\") Weight: 2.4kg (5.3lbs.)