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I'd say you have a fair bit of practical experience now Rob!

I want to start making my own internal washers as those micro fasteners ones we all use are just so thick. I'm planning to make some...

What did you use for internal washers?

Hey Rob. I just tried drilling two pivot hole with a regular 3mm drill bit, one worked a treat and one didn't even touch it. I tried filming it but I've had a couple of beers and it was just beyond...

Nah, it won't crack if you don't quench it and if it bends you can bend it back once it's soft.... Simple :)

Yeah, I have no idea what I'm talking about :D

I would try a HSS bit first personally, the tang may not be very hard. As mentioned earlier, you could aneel the tang first as drilling hardened steel is no fun. To soften the tang without ruining...