Powerful 18V (2.6Ah) Ni-MH batteryErgonomic rubberized grip for comfort and controlHigh performance "Makita" motor lasts up to 5 times longer16 torque settings; delivers up to 400 in.-lbs. torqueSingle-sleeve 1/2" keyless chuck with shaft lock for fast and easy one handed bit installation and removal3 mode settings for hammer drilling, driving and drilling2-speed gear selection with variable speed in each rangeMode selector for hammer drilling, driving and drilling operates independently of clutch selectorIndustrial metal gear housingExternally accessible brushes for easy replacementSide handle for extra leverage can be rotated 360° around the toolConveniently located forward/reverse button