Re: What is the first thing to do? MSA or calibration?
Sushil, Welcome to the Cove!
As for your other question re. process capability, I would request you to please spend a little time with the "Search" function here. This topic has been discussed many many times in great detail..and you will find a lot of spreadsheets as well. If there is something you don't find, please do ask and forum members will be happy to help.