I'm gradually building up a collection of different sized routing/milling bits for my CNC3040, and want to store them in a big box with a drilled plate and labels, so I can quickly find the one I want for a particular job. To keep the descriptions short I'm wondering if there's a 'standard' shorthand nomenclature for the main dimensions of bits. (I'm a retired electronics engineer, with little experience in machining; i.e. ignorant!)

Apart from a verbal description of the type ('end cutter', 'ball-end', 'half-flat', etc), is there a standard order for the numbers? - particularly: shank diameter, cutting diameter, cutting (flute) length, number of flutes.

If there's a 'standard' order for listing these, I could just have something like '3.0/2.0/8.0/2' next to a bit, and know exactly what it means. Of course if there's no widely-recognised standard, I can just devise my own (like that example).

Thanks in advance.

Daniel
Gerroa, Australia