DeWALT DCF899P1 20V MAX XR Brushless High Torque Impact Wrench Kit for $279.00 shipped after an automatic discount that is applied during checkout. Here is a screenshot for reference. It has a heavy-duty impact mechanism with a max torque at 700 ft./lbs. and a max breakaway torque at 1,00 ft./lbs. Most places have it for about $349.