Add to your NAPA USA collection! There is a universal swivel extension and a 1/4 driver handle both marked USA. The 1/4″ drive ratchet is marked USA and is 5 and 3/4″ long. By the Numbers: Ratchet. NM 46 Driver Handle NM64 Extensions 6″ NM 20 1 1/2″ NM 23 Universal NM 60 Sockets (do not know if this is a complete set) 1/2″ socket NM616 7/16″ socket NM614 3/8″ NM612 11/32″ NM611 5/16″ NM610 9/32″ NM609 7/32″ NM607 3/16″ NM606.