Or one of these 0-1" http://www.ebay.com/itm/SHARS-Magne...justment-w-1-Dial-Indicator-NEW-/331114595341
which will give sufficient scale for just about anything.
The links that I posted were purely for illustration.
My Starrett is a 0-1" plunger, and the other is a 0-1/2" finger, although I only have a single mag base, I have a number of arm extensions which will give me reach.
For BB, feelers are OK as long as you take into account the wear on the rockers, which becomes a very slight indentation. The DTI removes that


which will give sufficient scale for just about anything.
The links that I posted were purely for illustration.
My Starrett is a 0-1" plunger, and the other is a 0-1/2" finger, although I only have a single mag base, I have a number of arm extensions which will give me reach.
For BB, feelers are OK as long as you take into account the wear on the rockers, which becomes a very slight indentation. The DTI removes that