Rex Hacksaw Data for the "Six-and-a-half M", 7.5", 10", 12" single-speed and 12" two-speed models Rex Hacksaw "Six-and-a-half M", 7.5", 10", 12" single-speed and 12" two-speed. Manufacturers: Rex Models: 10-inch 6.5M 7.5-inch M Contents: Operators Manual