Armstrong 47-020 Metric Standard Length Impact Socket, 20 mm Socket, 1/2 in Drive, 1.614 in OAL, High Alloy Steel

Armstrong Impact Socket, Metric Standard Length, 20 mm Socket, 1/2 in Drive, Squared Drive, 1.614 in Overall Length, 6 Points, 1.185 in Drive End Width, 1.193 in Socket End Width, 0.591 in Bolt Clearance Depth, 0.492 in Opening Depth, High Alloy Steel, Black Oxide