5 Best Impact Wrenches - July 2021 - BestReviews- best impact torque wrench ,Small, inline impact wrenches from a reputable brand cost around $100. Pistol air tools range between $100 and $200; extremely heavy-duty models may cost a bit more. Cordless impact wrenches sit at the top the pile in terms of price. Expect to pay $250 for a good cordless impact wrench and $400+ for the best.Best 5 Impact Torque Wrench Sets For You In 2021 ReviewsIn my opinion, the two best impact torque wrench sets to buy are the Makita high torque impact wrench kit and the Milwaukee M18 fuel high torque impact wrench set. Both include impact wrenches with very high torque suitable for heavy-duty machines.