The DEWALT DCG412 125mm XR Premium Angle Grinder has a powerful fan cooled motor and intelligent variable speed trigger and lock-off switch for enhanced work safety and control. It features the XR Lithium Ion Technology and is part of the intelligent XR Lithium Ion Series designed for efficiency and making applications faster. The powerful and highly efficient PM58 DEWALT fan cooled motor has replaceablebrushes, and delivers up to 7,000 rotations per minute for fast cutting and grinding applications. It has steel cut spiral bevel gears which provide the highest level of durability and low vibration, increasing user productivity and the low profile jam pot gear case improves gear durability and ergonomics. Specifications: No Load Speed: 7,000/min.Disc Diameter: 125mm.Spindle: M14.Weight: 3.0kg.