The De Walt DC901M2 36V 4 Ah Hammer Drill Driver, 2 x 36V 4.0 Ah Li-Ion Batteries & Kit Box is a powerful combination tool for heavy duty applications in both drilling & screw driving. It has 3 separate speed settings for ultimate high torque performance, normal use & high speed applications. You can choose between 22 adjustable torque settings for uniform results & precise screw driving. The chuck is 13mm, all metal & keyless for excellent gripping of drill & driver bits & the ergonomically designed trigger & anti-slip grip provide the user with great comfort & control. There is an electronic brake for added control & a high performance fan cooled motor for maximum durability & power. The gearing of this tool is constructed from all metal, meaning efficient power transmission & a long tool life. DEWALT 36V 4.0 Ah Li-Ion Battery Technology offers extended runtime & optimised power to complete the most demanding applications quickly. This tool comes complete with 2 x 36V 4.0 Ah Li-Ion batteries, a 36V charger, a clip bit holder, a multi position side handle & a heavy duty kitbox.