drilling steel cases?

[JiM]

Definately doable, better with HSS bits than unibit. And maybe some lubricant/coolant.
Just be patient.

[lolbou]

Aluminium is fairly "soft" as compared to steel...

Use bits progressively (getting bigger of course, every mm or two), and a fast drilling machine (high speed only, or you'll make a triangle hole).

A "drill stand/holder" would be safe for your fingers...

[Reginald]

Drilling steel isn't too difficult if you have sharp bits. If I were you I'd buy a good 1/8" bit for drilling pilot holes, and some bits in whatever size you need. You can always sharpen them again.

[soulsonic]

I've drilled those exact cases with a Unibit without too much trouble. You might need a higher-powered drill depending on how much torque your cordless can deliver... I've seen some cordless ones that are pretty juicy so maybe you'll be fine.

[willc1968]

definitely try to start out with a pilot hole and keep the bits well lubed. i will have a cap off a quart container of oil half filled and dip the bit in there prior to drilling the hole. when using the larger bits i will do a few drops of 3 in1 oil while drilling. also if you dont have one a drill press is the way to go. i got my little delta brand new for under $80 about 15 years ago. i am sure one can be had in the used market for a reasonable price. also new or well sharpened high speed steel bit are best for metal cases but i have had good luck with the cheap reconditioned carbide bits for drilling my pcbs.

[Scruffie]

I had a steel scratch plate drilled out for my guitar, I just took it to a local hardware type shop and they drilled out 3 holes for about £2 so that could be a possibility if your near anywhere that might have a decent drill, just an idea.