Professional socket for commercial or occasional use 16mm metric deep impact socket Metric socket 1/2" drive socket so will fit any 1/2" drive ratchet, bar, impact gun etc... Manufactured from chrome vanadium steel for strength and durability Hardened and tempered for added strength and with phosphate finish for greater corrosion resistance Impacted socket so suitable for use with high torque tools Single hex / 6 sided socket 16mm Metric socket Total length of the socket - 75mm Total inner depth of the socket - 30mm