M7 Pin & Ring Set For 1/2″ Drive Impact Sockets, 1-7/16″ (37Mm) – 1-15/16″ (49Mm)

Pin Diameter: 4mm
Pin Length: 30.5mm
Ring Diameter: 38mm
Ring Thickness: 4mm
Suits Sockets: 1/2" Drive 37mm to 34mm