Practical guidance on gauging, calibration, standards, and shop-floor quality, from the DSN engineering team.
Yearly calibration is a default, not a strategy. A practical framework for setting calibration frequency based on usage, criticality, and drift — so you calibrate often enough to trust, not so often you waste money.
API threads carry load and seal under extreme field conditions. A practical look at API 5B and 7-2 gauging, what inspection teams actually deal with, and how to keep reference tooling dependable from well site to audit.
Most gauge failures we see are not manufacturing defects — they are handling and maintenance issues. A practical maintenance routine for plain plug and ring gauges that actually works on a real shop floor.
Thread gauges do not measure threads — they verify them. A practical look at why GO/NO-GO inspection still beats instruments on the shop floor, and how to specify gauges that match your real process.
A snap gauge and a ring gauge can both check a shaft diameter — but they detect different form errors, cost differently per inspection point, and respond differently to operator technique. Here is
A buyer's guide to precision gauges that skips the catalogue and answers the questions that actually determine whether you get the right tool: tolerance, standard, material, volume, and supplier support.
A worked error budget for thermal effects on gauge readings in Indian workshops without climate control. Differential expansion between steel gauges and aluminium/brass/titanium workpieces, soak
A shop-floor guide to building a wrung gauge block stack you can trust: grade selection per ISO 3650, wringing film thickness variability, thermal soak times by material, stack-building rules, and
The bore measures 25.012 mm inside a 25H7 band and the GO plug still will not enter. Five causes, in the order they are worth checking.