Machinist Tools Calculators A machinist is only as good as his tools and his precise measurements. Yes, gages, calipers, micrometers, and all of the other tools in your toolbox are necessary. However, other machinist tools are often overlooked. For instance, we have all heard the old English proverb "Measure twice and cut once." An older Russian proverb, by the way, states, "Measure seven times and cut once." So, after you - and possibly a few of your co-workers - have confirmed the measurements for a job, it's also a good idea to run the numbers through a machinist calculator. The calculator programs I create for the GrafNCalc83 App are great for that final check. These take a few days to program and a few days to test before I upload them for sale. The app is downloaded on my own iPhone so it is immediately available when I need to check my calculated measurements for a job. I invite you to look through my site to find a calculator program you can use for the