Iso 2768 Medium < PRO ✔ >

Angular tolerances are defined by the length of the shorter leg forming the angle.

For very large, non-critical frames, the "coarse" (c) class might be more appropriate to keep costs down.

When a drawing notes "ISO 2768-m," it strictly refers to Part 1 (Linear and Angular). However, in practice, this is often paired with a class from Part 2 (commonly "K"). Therefore, the complete designation usually appears as . iso 2768 medium

The standard applies to:

Keep in mind that the specific tolerance requirements will depend on the application, industry, and design specifications. Angular tolerances are defined by the length of

It is critical that the designer understands the capability of the manufacturing process before selecting the class. Selecting "m" for a rough sand-casting part is incorrect, as the process cannot reliably hold $\pm 0.2$mm on small features. In such a case, "c" (coarse) would be appropriate.

The "Medium" class represents the standard capability of standard machine shop equipment (CNC milling, turning, drilling) without requiring specialized high-precision setups. However, in practice, this is often paired with

A very specific and technical topic!

Table 1: Linear tolerance values for Class "m".