All 1/4in Square Drive Sockets have a ball retaining hole in the drive end to ensure a positive fit with all 1/4in square drive accessories.
Manufactured from high quality alloy steel, with a bright nickel and chrome plated finish.
Size across flats. 6BA Hexagon.
Depth of socket form. 5.5mm.
Overall Length. 22.1mm.
Square Drive. 1/4in