They are very good and well suited for measuring holes. Only thing is that the largest had a bit of "rust" on the threads which progressively gets worse in the threads making it difficult to turn.
Thickness gauge CarSys DPM-816 PRO (Fe/nFe)
31 Review
Accurately Measure Angles And Levels With GemRed XVB Digital Gauge Level Box For Pipe Conduit
25 Review
Cullaby Contour Gauge: 10 & 5 Inch Duplications For Perfect Templates Of Curved And Odd Shapes, Plus Bonus Angle Ruler & Carpenter Pen!
23 Review
Laser rangefinder Xiaomi ATuMan Duka LS-P Laser Range Finder 40 m gray
119 Review