Powerful 36 Volt combination tool for heavy duty hammer drilling & screw driving applications. Three speed settings for optimum performance in high torque, normal use & high speed applications. 22 position adjustable torque control for uniform results & optimized precision when screw driving. 13 mm all metal self-tightening keyless chuck tightens throughout operation providing superior bit gripping strength. Ergonomically designed trigger & anti-slip comfort grip provides increased comfort & control. Electronic brake for added control. High performance fan cooled motor for maximum power & durability. All metal gearing for efficient power transmission & longer tool life. Enhanced durability & reliability to withstand the job-site environment & the most demanding applications. Exclusive Nano Phosphate Li-Ion battery pack provides 2000 Charge Cycles, more than double that of Ni Cd/ Ni MH packs. Battery pack produces 36 Volt power at equivalent weight to 18 Volt Ni Cd/ Ni MH pack weight.