Not happy I cannot use this program as I mostly cut g10 and plastics. I have tried to write an email for a refund but it says email doesn't exist. It's a shame the program looks nicely built. If actions are take to help I would gladly change my review
Behind the scenes minor update
A simple, beautiful calculator app similar in layout to the iPhone calculator
Calculate the values needed to machine and inspect keyways in shafts and hubs
Calculate precision block stack or angle for use with sine bars or sine plates.
Quickly and easily measure ISO metric, BSW and UN 60 degree threads over 3 wires