The 72-tooth inner ring made of high-alloy special steel allows for drive engagement with just a 5-degree lever movement. Nevertheless, the transferable torque values far exceed DIN/ISO standards. The shafts are made of CrV steel with optimal surface protection: nickel-plated twice and matte chrome-plated once. Clearly legible sizes are achieved through a laser marking process. It is not possible to switch the head (ring side) angled at 15 degrees. Therefore, this type of wrench features a lever switch for clockwise and counterclockwise operation. Ideal for screwing on flat surfaces.