These Facom 12-point OGV sockets have a 1/2in Drive to fit 1/2in ratchets. They are high quality and ideal for tightening and loosening bolts, nuts and other fasteners. The FCMS27 socket has the following specifications.
Facom Hexagon R.7 Socket 1/4in Drive 7mm
Facom Hexagon R.10 Socket 1/4in Drive 10mm
Facom Bi-Hexagon Socket 3/8in Drive 24mm
Facom 6-Point Stubby Impact Socket 1/2in Drive 11mm
Facom 6-Point Stubby Impact Socket 1/2in Drive 27mm