SOCKET-CR-MO 10mm 6pt. Spring loaded Magnet 3/8"Dr. Impact 1-3/4"oal body width 3/4",nose Dia.5/8", #10mm CR-MO High Impact Steel, advance-metra-apex, (Made In USA),  spring-loaded or hollow cylinder magnet allows the bolt or stud to retract into the socket      LOC.1-5-8