Aww. This brings back Memories. We used spring steel from street cleaner brushes for both pick and wrench. One of the troubles with that design was that the pick itself was quite narrow, which made it a little difficult to manipulate up and down around the keyway inside the lock. I gave some thought to makin' handles for my picks ( professional ones have nice riveted steel plates, sort of like knives). Betcha that a printed handle with a business end made of steel would make for a kickin' tool. Hmm. Maybes this weekend.