The M18 FUEL 2-Tool Automotive Impact Wrench Combo Kit is the highest performing Impact Wrench kit in the industry. Included is the M18 FUEL 1/2 in. High Torque Impact Wrench w/ Friction Ring that delivers the most powerful 1/2 in. Cordless Impact Wrench at 1,400ft-lbs Nut-Busting Torque, up to 2X Faster Removal Speed, and is the Most Compact High Torque Impact Wrench in the industry. Also included is the M18 FUEL 3/8 in. Mid-Torque Impact Wrench w/ Friction Ring that delivers up to 600 ft-lbs Nut-Busting Torque, up to 450 ft-lbs Fastening Torque, and provides more control with 3-Mode DRIVE CONTROL. M18 FUEL features the most advanced cordless technology in the industry, a POWERSTATE Brushless Motor, REDLINK PLUS Intelligence and REDLITHIUM Battery Technology, resulting in longer motor life, longer run time and more power.