Knife Blade Modifications

[Inceptor]

This question is for the knife-making professionals here:

I need to know how to shorten a knife blade (420HC Steel) by 0.2" without ruining the physical properties of the blade.

Explanation: I have a Leatherman Super Tool 300 with a 3.2" blade. In order for me to take it to SFAS later this year, it must be less than 3"

I understand this may be the equivalent of asking a sculptor to tell me how I may best remove the ear from one of their associates' statues. Please forgive the insult, but I can not afford to buy another tool.

Respectfully Submitted,

A.W.