This 3/4″ Sq. Dr. Combined MM/AF socket set includes sockets made from carbon steel that is hardened and tempered with a chrome plated finish. Includes a reversible ratchet and accessories. Supplied inside a sturdy storage case. PZ TYPE products are compatible with *Pozidriv/Supadriv fixing systems. Draper TX-STAR products are compatible with Torx fixing systems*Pozidriv/Supadriv are registered trademarks of Trifast Plc.Torx is the registered trademark of Acument Intellectual Properties LLC.