The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
The American Punch Tonnage Calculator App features four calculators for determining the information necessary for accurately and safely punching holes in a variety of materials typically found in the structural steel and fabrication industries. Designed with the ironworker, machine operator, estimator or engineer in mind, these calculators offer a way to determine the required tonnage for punching mild steel and the proper die clearance. It also has a calculator for determining the correct diagonal measurement for square, rectangular and hex shapes. Even includes a measurement conversion calculator. All in one, easy-to-use app!