1/2" Hammer Driver-Drill has a new 4-pole motor for 450 in. lbs. of torque and weighs only 3.9 lbs.
6-1/2" Circular Saw has a D35 high torque motor, built-in blower and is 7.1 lbs.
Reciprocating Saw with tool-less blade changes & shoe adjustments at only 8.1 lbs.
Impact Driver is...