18PCS: 6PCS OF SCREWDRIVER BITS, 1/4", LENGTH 37MM (HEX: 3, 4, 5, 6, 7, 8); 6PCS OF SOCKET BITS, 1/2", LENGTH 50MM (HEX: 5, 6, 7, 8, 10, 12); 6PCS OF SOCKET BITS, 1/2", LENGTH 100MM (HEX: 5, 6, 7, 8, 10, 12); DIN 3120 / AISI S2, CRV6150, HR C 58-62, STAMPING LOGO, SIZE & MATERIAL