Precision Scaler
MaxScript is a utility for 3ds Max designed for precise scaling of models.

Key features:

Works exclusively in millimeters, ensuring correct scaling for tasks where real-world dimensions are important.

Works in real time – changes in dimensions are recalculated and applied immediately after entering values.

Automatically applies XForm Reset, preserving the correctness of transformations.

Supports two operating modes:

Simple Diameter Mode – you enter only one known dimension (for example, the diameter along the X axis), and the script scales the entire model proportionally.

Precise Dimensions Mode – the ability to set length, width, and height separately.

The "None" option allows you to scale XYZ independently, without maintaining aspect ratio.

Supports selecting an object from a scene, displays its original dimensions, and immediately recalculates the scale to match the specified parameters.

Advice:
After installation, it is recommended to restart 3ds Max so that the icon appears correctly in Toolbars.