Review on Highly Accurate PC Telescoping Gauge Set by Polo Bradley

As other reviewers have pointed out this is a decent set for the price. The ends are fairly well finished, although I'll probably touch up one (of 12) with fine sandpaper to remove some of the machining marks, which to be honest probably doesn't affect the quality of the measurement. There is a little side play in the slide mechanism, which mostly goes away when you tighten the stop. Based on that I would guess that they would be good for 1/1000" but probably not 1/10000".