We are all about the Chart: Press Brake - Hole Punch - Metric - Band Saw - Shear - Drill Charts







































































METRIC HOLE PUNCH TONNAGE CHART -PDF printable

This chart calculates the metric tonnage to punch a round metal hole.  These charts are to be used as a guide only as the Inronworker or punch press tonnage calculations are approximate and depend on may variables.  The rule to follow is never punch a hole diameter that is less than the material thickness.   The metric hole punch tonnage chart is similar to the imperical punch chart on this site.

metric_punch_hole_tonnage_chart.png 

METRIC HOLE PUNCH TONNAGE CHART -PDF printable

 

metric punch tonnage chart