A socket drive adapter with a 1/2" female square and a 3/8" male square. The female square fits onto the drive lug of a 1/2" ratchet or extension and the male square accepts 3/8" drive sockets, so one ratchet can turn sockets from the other drive size.

• Female square: 1/2"
• Male square: 3/8"
• Lets a 1/2" drive ratchet turn 3/8" drive sockets