Top-of-the-line Model 599-238-16-1 shown above with optional 1.2" setting ring
"Digital Reading" does not refer to anything electronic. The barrel of this direct reading hole micrometer has small numerals which display the correct reading to .001" (0.01 mm on metric models), much like the early "digital" alarm clocks of the 70's. An additional division on the display will allow you to read down to .0002" It's totally mechanical and easy.
The three replaceable tungsten carbide measuring arms are flush with the bottom of the gage so that not only through holes but also blind holes can be measured.
This Brown & Sharpe precision Intrimik is made in Switzerland by Tesa. You can expect durability, reliability and accuracy from this manufacturer. This is the type of gage you will want to invest in, if you're planning on being in the business for a while. Nothing better is available.
Intrimiks are available singly or in sets which cover larger spans. Each Intrimik will require a setting ring, as shown in the photo above. These rings are sold separately but they are included in complete sets. Complete sets also include some tools: a screw driver, two spanner wrenches, a heat insulating rubber sleeve. The single units come in cheesy foam boxes, but the complete sets have fancy molded plastic suitcases. They're expensive; you'll want to store them carefully.
For easy ISO integration, an ID number, inspection report and declaration of conformity are included.