Tools For Replacing Led and Driver

[kiriba-ru]

New flashlight modder (hopefully), needing some general advice!

I have many mechanical and electrical (residential/commercial/underground) tools but i would like to have the specialized stuff for electronics. What are the tools flashlight modders need or “nice to haves”? What size reamers do you use for small flashlights parts? Is it possible to build a light as tough as an elzetta with parts from mtn elec. or should i buy tougher components and where to find them?