Star sizing die etching

[Humbo]

Hi, does anyone know what Magna uses to etch the dimension into their sizing dies? I have some dies I want to open up, and would like to label them accordingly.
Thanks.

[fc60]

Greetings,

It is an "Electric Pencil".

This is the tool I use.

http://www.lumaelectric.com/catalog/product/21/luma-etchtool-130

Cheers,

Dave

[country gent]

A little thing i do to mark pieces parts is this.
You need a resit such as nail polish. paint, sometimes wax will work. Coat the part with it and let cure. I use nail polish as its easy to remove when done.
A simple scribe or awl and write the information thru the resist, A dull scribe makes a better wider letter, Blow wipe the chips off.
With some cold blue and a cotton swab fill the new scribed lettering and let set may take a couple coats.

A dremil tool with a fine point stone will also remark nicely by hand.

[Humbo]

Thanks a lot to both of you for the info/tips. Now I know where to start.