The DTW190Z is a cordless impact wrench, powered by 18V Li-ion battery (not included) to deliver up to 190 Nm maximum tightening torque & 320 Nm nut busting torque. Equipped with Battery protection circuit: designed to protect the battery from damages due to overdischarge, high temperature or overload current. Ergonomically designed handle with rubberised soft grip fits your hand perfectly to provide maximum control & comfort.