12-16 Gauge Tube Bending Machines 12 Gauge Tube (.109” WT) – 14 Gauge Tube (.083 IN WT) – 16 Gauge Tube (.065 IN WT) 1/2″ ODModel A-1 Tube Bending Machine 3/4″ ODModel A-1 Tube Bending Machine 1″ ODModel A-3 Tube Bending Machine 1 1/2″ ODModel A-3 Tube Bending Machine 1 3/4″ ODModel A-5 Tube Bending Machine 2″ ODModel A-5 Tube Bending Machine 12 Gauge Tube (.109” WT) – 14 Gauge Tube (.083 IN WT) 2 1/2″ ODModel A-7 Tube Bending Machine 3″ ODModel B-10 Tube Bending Machine 4″ ODModel D-10 Tube Bending Machine