Thickness of MATERIAL
Width of Die opening
Notes: The tonnages indicated in bold italics are for die openings eight times the thickness of the metal.
With an 8:1 die ratio, the inside radius of a right angle bend is approximately equal to the thickness of the material.
GaugeInches1/4"5/16"3/8"7/16"0.53/8”0.750.8751 ” 1.1251.251.52"2.53"3.54"5"6"7"8"10"12"
200.0363.12.31.71.41.1
180.0485.3432.52.21.71.3
160.069.67.15.64.53.82.82.21.81.5
140.07511.99.27.66.34.73.532.52.11.8
120.10516.713.19.786.55.64.64.13.2
110.1219.214.211.197.56.35.54.42.9
100.13518.614.511.99.98.57.35.84
3/16"
0.18827.423.119.316.414.311.27.54.4
1/4"0.2539.433.329.522.715.411.497.46.1
5/16"0.31350.439.82719.715.312.710.57.7
3/8"0.37561.642.330.92419.616.312.39.5
7/16"0.43861.745.835.428.624.417.314.811.2
1/2"0.585.263.648.839.733.324.619.415.913.1
5/8"0.62511086.27058.343.133.327.423.316.9
3/4"0.751381109368.753.543.636.527.121
7/8"0.87516513710480.764.652.939.731.6
1"119714311391.276.256.344.2