Up size your flat bars!
Coming in at . 79 (2 MIL) these are the thickest ones yet.
Some locks have giant keys ways and for that you need a very thick tension bar to get a solid hook up. Tension control is one of the most important aspects to lock picking and if you have a specific lock in mind that has a large keyway these will be essential.
Also know as TOK Wrenches for top of keyway.