Developer's DescriptionBy JaspyThis App was compiled to give a good quick reference to conversions, decimal equivalents, tapping charts for common threads, drill feeds and...This App was compiled to give a good quick reference to conversions, decimal equivalents, tapping charts for common threads, drill feeds and speeds and cutter speeds and feeds for everyone from the serious engineer to the backyard engineer. Hopefully if people do find it a handy tool to have I will be able to build on its material creating a wider data base of engineering knowledge.