... (Bar) 4.Max.torque:340N-M Specifications: AIR IMPACT WRENCH UN240013 AIR TOOLS ModelUN240013Drilling capacity1/2"Free speed7000rpmAvg.air consumption8scfmWorking pressue ... .25/23KGSCarton Capacity10pcsCarton Size38*21.5*43CM AIR IMPACT WRENCH UN240013