Snap-on Tools USA NEW STYLE 8-Piece. Mixed Drive Mixed Finish Adapter Extension. Socket Lot Set w/Magnetic Organizer Tray. All of the pieces in this set use standard friction ball retention. IPF800B = 3/8 drive impact swivel extension socket. GSAF1F = 1/2″ to 3/8″ drive reducer extension socket. FU8A = 3/8 drive universal chrome swivel socket. IPM800B = 1/4 drive impact swivel extension socket. A2A = 3/8″ up to 1/2″ chrome adapter extension socket. TMU8B = 1/4 drive universal chrome swivel socket. GFAT1E = 3/8″ to 1/4″ drive reducer extension socket. TA3 = 1/4″ up to 3/8″ chrome adapter extension socket.