Expert Quality, bits manufactured from hardened and tempered S2 steel with a shot blasted finish. 1/2" square drive bit holder from chrome vanadium steel hardened and tempered with a micro satin finish. Display packed. Contents: , 1 x bit holder 10mm x 1/2" sq. drive, 2 x bits: 6 and 8mm x 30mm long, 2 x bits: 10 and 12mm x 75mm long