Originally Posted by dig
Wilson micrometer, consistent, square case mouths, easy to use. Have never looked back.
many years ago I bought a used Wilson, and completely rebuilt it. The cutter was a little on the dull side and ground wrong for brass. Had a friend resharpen it and change the relief on the cutter. Made a 100% difference. Later on I added my own micrometer head to the end where the screw backstop is. But always found it to be kinda hard to hang onto, so I made my own stand out of some 1/4" aluminum scrape metal I found at the junk yard. Another big jump. Later on I made a larger bracket to hold it and a couple other tools out of the left over aluminum from the first buy. Two years later I see one with a micrometer head in the Sinclair catalog! Had a good laugh over it. The Wilson cutter (and also Sinclair's) is ground to cut steel, and will work OK. The resharpened cutter cuts brass like a hot knife going thru butter, and leaves very little burr to remove.
A Wilson trim tool is very easy to rebuild, and the worst part is the cutter. So don't be afraid to buy one off Ebay next to nothing.