The HiKOKI WH18DAW4Z Multi-Volt Impact Driver has a compact and lightweight design for optimum manoeuvrability. A variable speed trigger provides optimum control during operation. Fitted with an ergonomic soft grip for optimum ease of use and safe, and comfortable handling. There is also an integrated LED light for good illumination of the work area. Specifications: Bit Retainer: 6.35mm.No Load Speed: 0-2,700/min.Impact Rate: 0-3,600/BPM.Max. Torque: 140Nm.Capacity: Ordinary Bolt M5 – M14,High-Tension Bolt M5-M12.Bare Unit Weight: 0.8kg.