3-Inch English & Metric Pocket Sliding Bar Caliper (132ME)

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Works just fine, but more on the no-frills side. It's not a Vernier scale, so it doesn't read in a completely precise or accurate manner. Truly, even a $5 Vernier wouldn't be that reliable. But when it comes to measuring thing that usually come in pre-defined sizes, such as pipe and wire, this ought to work fine. Actually, I use mine to measure the "ring" gauge of my cigars. There is no lock mechanism, but it's easy to pinch and hold the two sliding pieces together and see the reading more closely. The top scale is graduated in millimeters up to 100 mm. The bottom scale is graduated in 32nds of an inch, up to 4 in. However, due to the design, the maximum outside opening is 77 mm or 3-2/32". The maximum inside opening is 82 mm or 3-6/32". The minimum measurement while checking an inside diameter (when slider is fully closed) is 5 mm or 6/32". On the back, when the slider is fully extended, there is a Decimal Equivalent chart showing 16ths to decimal inches, and also 32nds to decimal inches. Overall, it's a fairly sturdy piece of stainless. The ruler that slides out is a bit more delicate when it's extended, but I wouldn't call it flimsy. Closed, it's sturdy enough to survive in a pants pocket. All the markings both front and back are etched and painted, not merely painted on. I'd imagine it would take some normal wear and tear and still be readable if the black paint of some markings were to rub off. On the back of the

I only need this caliper here and there, so this is just the right price, made of stainless and gave an accurate measurement.

Buena calidad y acabados, no es tan preciso como los que utilice en la universidad pero para calibrador casero si funciona.

The caliper and packaging was heavily scratched up when I received it, and did not seem like a new product. I returned it immediately.