The drive is provided by a 72-tooth inner ring made of highly alloyed special steel, even with a lever movement of just 5 degrees. Nevertheless, the transferable torque values are well above DIN/ISO specifications. The shafts are made of CrV steel and offer optimal surface protection: nickel-plated twice and matte chrome-plated once. The sizes are clearly legible due to a laser marking process. The self-locking feature of the joint, which is very pleasant for practical use, remains unchanged even after more than 10,000 operations. Thanks to its flexibility, the product is unmatched when working in tight and tricky spaces.