The Hitachi WH9DMR 9.6-Volt Ni-Cad Cordless Impact Driver combines the categories latest technology with Hitachi's world class durability. This powerful 9.6-volt driver generates a no-load speed of 2,600-RPM with an impact rate of 3,200-BPM. These tools are designed from Hitachi's exclusive 3-D cad design computer that simulates extreme conditions to create the most durable and efficient tools available. The 2-piece motor is fan-cooled for greater durability and increased performance. This impact driver has carbon brushes and a 5-position belt hook with an integrated LED work light for use in dark spaces. The WH9DMR delivers 930-inch per pound of torque with a 1/4-inch hex drive chuck.