The Bosch PS42 12V Max EC Brushless 1/4” Impact Driver delivers a maximum torque rating of 975 in/lbs and weighs just under 2 lbs, while the PS82 12V Max EC Brushless 3/8” Impact Wrench offers a torque rating of 85 ft/lbs and weighs 2.2 lbs. The Bosch PS42 offers a no-load rpm rating of 0-1,200 rpm and a no-load bpm rating of 0-2,700 bpm. The Bosch PS82 offers a no-load rpm ratings of 0-2,600 rpm and a no-load bpm rating of 0-3,100 bpm. The tools’ feature a compact head length of 5.4" for the impact driver and 5.5" for the impact wrench. The PS42 has an optimized impact system to deliver outstanding impact force, fits all standard hex drive bits and accommodates 85 percent of impact driver applications. The PS82 also offers an optimized impact system for efficient impact force and a square drive anvil. Both units include an LED light ring to illuminate the work area and dark locations, as well as a battery gauge indicator for easier charge monitoring.