Starrett 84 Dial Bore Gage allows for bore measurements beyond size range of our 82 Series.
It is a comparison gage and should be set with a master ring gage, gage blocks with parallel jaws, outside micrometer or vernier caliper. Ring gage is available by request, quoted by application. Good practice is to set the gage to zero, as near to the desired dimension as possible. Range .0001" Grad.