This Wera Bit-Check set is designed for efficient and organized bit storage and usage. It features an upright, space-saving design and includes a universal holder with a quick-release chuck for rapid bit changes. The Torsion bits are engineered for durability, offering enhanced resistance to premature wear, and are tough and viscous for versatile application. The set comes in a handy and robust Bit-Check case, making it easy to transport, for example, in a shirt pocket. The holder is suitable for power screwdrivers and electric drill chucks, featuring a strong permanent magnet for secure bit retention.