Tool set 1/2", 1/4", 72 pieces A professional tool set, developed to meet the needs of specialized automotive and mechanical services. Socket wrenches, as well as the socket drive, are made of durable, tool chrome-vanadium steel CrV 50BV3. The sockets are made using the die forging method, and before the hardening process they were calibrated using precise gauges and control devices. Sockets equipped with the AS-Drive system, increasing the maximum torque by 25%, with full protection of the nut edges, sockets with a two-tone surface finish. The set also includes bits. The set allows work requiring very high loads and precision, allows you to perform many service activities related to unscrewing and screwing threaded connections of different nominal sizes.