Hitachi G18DBL/W4 18v Brushless Angle Grinder Body Only FEATURES Best in class cutting performance per charge achieved by high efficiency brushless motor Powerful motor for easy cutting operation Smallest body & grip circumference and most lightweight in its class Lightweight and compact body with a slim grip and small gear cover for easy handling and efficient operation Deep cutting in concrete with a depth of 30mm Auto mode function for reducing noise and vibration in no-load operation 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 Resin coated by resin-coating the circuit boards, the electronic parts are protected from dust and water Equipped with mesh filters that significantly improve the dust resistance The tool less 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 SPECIFICATION Wheel Diameter: 115mm (4.5\") Bore Diameter: 22.23mm (7/8\") Spindle Thread: M14 x 2 Voltage: 18v No Load Speed: 9,000/min. AUTO mode: 5,500/min. Overall Length: 326mm (12 - 27/32\") Weight: 2.4kg (5.3lbs.)