The Makita GA038G XGT 40Vmax BL Angle Grinder is excellent in continuous heavy-duty work, providing a great solution to high demand, industrial applications. It has a brushless, maintenance-free and long-life motor with a soft start feature providing safety when working. The anti-restart function has been engineered to prevent motor start up when a battery is inserted with switch locked on. Active Feedback sensing Technology (AFT) stops the engine if the rotation suddenly stops. XPT (Extreme Protection Technology) provides improved dust and water resistance for operation in harsh job site conditions. The battery protection circuit protects against overloading, over-discharging and over-heating. Compatible with the Auto-Start Wireless System (AWS), connects to compatible dust extractors with Bluetooth. The dust extractor automatically runs while the switch is on. Specifications: No Load Speed: 6,600/min.Disc Diameter: 230mm.Bore: 22.23mm.Weight: 2.9kg.