Sealey torque wrench 3 4 sq drive push through calibrated sealey premier stw601 manufactured from chrome vanadium steel hardened and tempered with a chrome plated polished finish ratchet head features flip reverse action and push through drive to allow torquing either clockwise or counter clockwise comfort grip with easy to use torque adjustment locks when required setting is selected calibration tolerance in accordance with bs en iso 6789 2003 suitable for commercial and industrial appl