Model HP331D is one of the first new 10.8V platform models. Succeeding the HP330 which was developed by adding hammer mechanism to drill driver model DF330D. Coming from solid tried and tested heritage but with slide on Compact eXtreme Technology Batteries. Featuring increased motor power for higher application speed and a max tightening torque. The rubberised handle has been designed for best grip and maximum thrust to the bit. A single LED joblight has pre-glow and after-glow functions handy for working in dark conditions.