Hilti - SIW 8-22 1/2" CORDLESS IMPACT WRENCH "This new impact wrench features two torque settings of 443 ft-lbs and 738 ft-lbs. Weighing in at 5.3 lbs for the bare tool." says
Hilti Nuron SID 6-22 Cordless Impact Driver - Red (2246798) for sale online | eBay
iF Design - Hilti SIW 4AT-22
Hilti SIW T-A 22-Volt 1/2 in. High Torque Cordless Impact Wrench Kit with 4.0 Lithium -Ion Battery Pack, Charger and Bag 3497769 - The Home Depot