You can position the head at the end for high-torque work, or in the center to use it as a T-handle for quick turning. It's a valuable tool for improving work efficiency. - Drive Size: 9.5mm (3/8 inch) - Length: 200mm https://www.fujiwarasangyo-markeweb2.com/DispDetail.do?volumeName=00017&itemID=t000100044572