Summary: Snap on M 4379 1 2 Drive Open End Torque Adapter Fig 232 Snap on M 4379 1 2 Drive 3 4 Open End Torque Adapter with Inset for Side View 1956 Fig 232 shows a Snap on M 4379 1 2 drive 3 4 open end torque adapter marked
Image Dimensions: 400 x 298
Image originally found here.