Makita UR014 XGT 40Vmax Line Trimmer comes with a brushless maintenance-free and long-life motor. It has a high-torque mode for heavy-duty operation where particularly high torque is required. Active Feedback sensing Technology (AFT) stops the engine if the rotation suddenly stops. A reverse rotation system removes entangled grass and weeds. It can also be used to change the direction in which the cut grass is flown.XPT (Extreme Protection Technology) provides improved dust and water resistance for operation in harsh job site conditions. The battery protection system automatically shuts off power when the battery level is low.Comes as a bare unit, no battery or charger supplied.Specifications:No Load Speed: 4,000-5,000/min.Max. Cutting Width: 45cmSpindle Thread: M10 x 1.25 LHNylon Line Diameter: 2.7mm