is a German standard titled "Limits and Fits; Principles; Terms and Definitions relating to the Standard DIN 7160 – Deviations and Fits for Cylindrical Workpieces."
Defines the ISO system of limits and fits specifically for internal features (holes). Size Range: Covers nominal dimensions from 1 mm to 500 mm . din 7161 pdf
In modern engineering practice, DIN 7161 is no longer the active standard. It has been replaced by: is a German standard titled "Limits and Fits;
But as manufacturing moves toward global harmonization, simply having the old chart isn’t the whole story. Let’s break down what DIN 7161 covers and where it stands today. What is DIN 7161? Published in August 1965, (officially titled ISO-Abmaße für Innenmaße (Bohrungen) (officially titled ISO-Abmaße für Innenmaße (Bohrungen)
