Use with in-hex screws or grub screws..[ SECURE DRIVE ] Ball bearing recess on the female end to grip a ratchet or extension bar securely.[ INSTANT IDENTIFICATION ] The socket features roll stamped markings to ensure permanent and instant socket identification.
[ LASTS FOR YEARS ] Black phosphate finish for maximum protection and durability. [ FOR HEX FASTENINGS ] Designed for use with hexagon hole fastenings.