Mini-Rocket: Mini Pipe / Diameter Caliper and Ruler - Fractional - 5 Pack

Good learning tool. Im trying to teach myself how to eye ball sizes of pipes and fittings. This is very helpful. I try to give my best guess and then i check it. This is great for at home and people in pipe businesses to learn or just check their work. The ones i purchased are accurate.

Works great. Was worried the ink wouldn't last long, but it has held up very well.

Takes the guess work out of pipe replacement.

Very accurate and a good tool for estimating pipe work

Good