Everybody gets a phone these days that takes a sim card. Well I had a request from a friend to make a hardened sim card removal tool so that he didn’t need to keep a sim-key around, he can keep it in his IT screw driver case.
So I used one of the bits out of the driver set. (its a cheap harbor freight set) It was the solid 5/32 hex stock. I went ahead and turned it down really small.
Turning it down was actually a bit of a challenge. It was already hardened, but not tempered. That’s that harbor freight quality…. So I first tempered it with a torch to a straw color. I let it cool and then started machining.
The actual turning process was interesting because it just wanted to flex once it got under about 0.1250″. So to finish it off I chucked it into my hand drill and went to the belt sander. I went slowly and kept the temp down but I was able to thin it out and keep it fairly true.
The final piece will be held in a little interchangeable hex micro-driver.
I’m not too worried about it with the home temper. Its obviously cast and poorly ground steel. Well, I’m not even sure it was steel. It machined terribly and I was using carbide.