IDH182 - 1/4 In. and 1/2 In. Socket-Ready Impact Driver is most powerful in class

IDH182 - Quick-change socket-ready adapter for 1/4 In. hex and 1/2 In. square drive

HDH181X - Brute Tough 1/2 In. Hammer Drill/Driver, built for high-torque bits

HDH181X - Four-pole open-frame motor provides 750 In.-Lbs. of torque

IDH182 - Hassle-free EC Brushless motor

IDH182 - Don't need both an impact driver and impact wrench; no socket adapters

IDH182 - Delivers a max of 1,650 In.-Lbs. of torque

IDH182 - Up to 3,200 BPM for professional power

IDH182 - Only 3.2 Lbs. and 6.2 In. long

HDH181X - Weighs just 5 Lbs., but delivers up to 27,750 BPM

HDH181X - Two-speed transmission and 25+1 clutch settings

HDH181X - 360 side-assist handle adjustable to 23 positions

Two 18 V Lithium-Ion FatPack batteries and a charger