Hitachi WH18DDL(H4) 18V IP56 Brushless Impact Driver Features: Water and Dust Protection rated to the international standard of IP56 dictates the model is highly resistant to the access of hazardous parts including dust protection to a point where dust will not penetrate in a quantity to interfere with satisfactory operation. Furthermore the model incorporates water protection to the point where powerful jets of water projected onto the model will have no harmful effects. High speed fastening up to 85% faster than conventional models. Super high rotation speed offering the highest maximum speed in the class. 172Nm High Torque providing max power for the toughest jobs. Exceptional ergonomics with a slim grip handle for increased user comfort and significantly reduced weight and size At only 1.5kg and 128mm in length to help reduce user fatigue. This is one of the most lightweight and compact impact drivers on the market Active Control System (ACS) is an Anti Cam-Out system which reduces driver slippage from screw heads Increased Anvil precision optimises the speed and impact timing reducing shaking of the bit The rotational speed selector allows 4 speeds to be selected enabling a wider range of applications over conventional models including the Hitachi S-Mode for the tightening of self drilling screws Multi function ultra bright LED light allows the user to select between trigger co-ordinated LED or ON/OFF switch Remaining battery indicator allows the user to display the amount of charge within the battery Brushless motors are 30% more efficient than conventional models as no energy is wasted through brush friction thus extending battery run time Electronic switches are more efficient in transferring energy and only require half the pull force of conventional switches Cooling charger maintains constant communication with the battery to monitor the charging process. The charger will cool the battery during the charge cycle to prevent damage and extend longevity. Super high capacity 5.0Ah Li-ion batteries with multiple protection circuit provide long run times and protects the battery & tool from overload, over heat, over discharge & over charge Specifications: Capacity: Bolt: M5-M16 / High tension bolt: M5-M12 / Machine screw: M4-M8. Max. Torque: 172Nm. No Load Speed: High: 0 - 3,100 (min-1) / Medium: 0 - 2,200 (min-1) / Low: 0 - 900 (min-1) / S-mode: 0 - 3,100 (min-1). Impact Rate: High: 0 - 3,400 (min-1) / Medium: 0 - 2,600 (min-1) / Low: 0 - 800 (min-1) / S-mode: 0 - 1,600 (min-1). Weight: 1.5Kg (with BSL1840 battery). Length: 128mm. Tool only. Battery and Charger sell separately.