A professional tool set, developed for the needs of specialized car and mechanical services. The socket wrenches and the drive of the attachment were made of durable, tool-vanadium steel CRV 50BV3. The attachments were made using the matrix method, and before the hardening process they were calibrated with precise fittings and control devices. The attachments equipped with the AS-Drive system, increasing the maximum moment by 25%, with full protection of the cutter of the caps, the attachment with a two-tone surface finish. The kit also includes bits made of hard S2 steel. The set enables work that requires very high loads and precision, allows you to perform many service activities related to unscrewing and screwing threaded connections of various nominal sizes.