Knockout / Hole Size Finder

Enter the measurements or known size information below. Calcori compares them with a bounded reference set and returns the closest practical match.

DiameterUnit

US conduit1/2" · 22.23 mm

Metric gland / entryM20 · 20.5 mm

Reference identification only. Confirm the exact manufacturer specification before ordering, machining, installation or safety-critical use.

METHOD

How it works

Result = closest supported reference from the entered measurements; verify the final product or engineering specification.

Note

Reference values for sizing. Manufacturer ranges, tolerances and standard variants can differ; verify the product datasheet before ordering.