GMC 2 Speed Cordless Hammer Drill/Driver (18V) - 920245 System 18V, fully compatible with all chargers and battery combinations. Powerful 18V cordless operation provides ample power for a wide variety of applications. Supplied with 2 battery packs with quick 1 hour charge - allowing continuous cordless use without delays to workflow. 2-speed gearbox and 20-stage clutch for precise selection of speed and torque for each task.