The Makita DTW190 LXT Impact Wrench features an 1/2 inch square drive shank which takes standard impact sockets. Offers forward/reverse rotation with a variable speed control trigger for increased control.The ergonomically designed handle with rubberised soft grip fits your hand perfectly to provide maximum control and comfort. Equipped with Battery protection circuit which is designed to protect the battery from damage due to overdischarge, high temperature or overload current. Comes as a Bare Unit, No Battery or Charger. Specifications: Bit Holder: 1/2in Square.No Load Speed: 0-2,3000/min.Impacts Per Min: 0-3,000/bpm.Max. Torque: 190Nm.Capacity: Bolt: Standard M8-M16, High Tensile M8-M12.Weight: 1.7kg.