1/4″ Imperial Long 6-Point Socket 1/2″ Chrome vanadium alloy steel, polished, chrome plated. 4 ball retaining grooves. ANSI/ASME B107.1
: 1/2 D1 (mm): 17.6 D2 (mm): 17.6 l (mm): 21 L (mm): 50 Weight (g): 56