#1560 M12 12-Volt 3/8-Inch Drill/Driver: Delivers up to 275 in lbs of Torque. On-board battery fuel gauge displays remaining run time. New ergonomic handle design for increased comfort. Metal Ratcheting Chuck for maximum durability. M12 12-Volt 1/4-Inch Hex Impact Driver: Delivers up to 275 in lbs of Torque. On-board battery fuel gauge displays remaining run time. New ergonomic handle design for increased comfort. Metal Ratcheting Chuck for maximum durability Both drill drivers feature on-board fuel gauges 3/8 Drill/Driver (0-400,0-1500 RPM) 1/4 Impact Driver (0-2,500RPM And 0-3,300 IPM)