Snap on metal socket rail lot. They have 1/2, 3/8, and 1/4 holders on them.
Mac Tools Hanging Metal Socket Set Tray Organizer Rack MT6Y 12pc Metric
Vtg NOS SEARS Craftsman 3/8" Drive Socket Rack Rail Metal Clips 10pc 41337 USA
Vintage Craftsman Socket Rack Rail Holder Organizer 1/2” Metal #41325 USA Made
Mac Tools Hanging Metal Socket Set Tray Organizer Rack MT6Y For 12pc Metric
Mac Tools Vintage Metal Socket Tray Rack Lot of 3 Metric Standard Caddy Organize
Snapon Magnetic Socket Rail, PAKTY241, PAKTY211 , PAKTY227
