Yes they can considered as Burglars tools, if you don't have a valid locksmith job, or a good excuse like me for automotive, but check your local laws.
Lock manipulation is a very fun and useful skill, I started at 12 and it got me into trouble, nothing that sticks though, I highly recommend learning it, it will come in useful at some point, and yes I can pick tubular locks, like on a vending machine, unless you buy the expensive, collet pick, it will take time, as most of them are double locks, which means, you pick it and it makes 180 degrees, and relocks, and you start over, took me 45 minutes to pick my 1st, but satisfying in the end. A good skill to learn
![Grin ;D](https://www.michaelbane.tv/forum/Smileys/default/grin.gif)
You never know when it will come in handy. The real locksmith picks are much better, than the cheap stuff, but we have a local guy making kits that are like a swiss army knife, cheap, and very small that work.