A pick gun (in this case a snap gun to be specific) is a tool locksmiths occasionally use in lieu of picking. It's thought that these tools helped those incapable of picking, but really they prove useful, even to the experienced picker. The tool works by bouncing all the pins above the shear line while you apply tension via tension wrench. The goal, as in all tumbler picking, is to get all the lock pins above the shear line at once. This tools sometimes expedites hat by bouncing them all in a bit of a random fashion. If you have no idea what I'm talking about, it's a good idea to find and read the MIT guide to lockpicking.
This particular tool is created using a windshield wiper blade insert. There are plenty of designs floating around the internet, usually using a coat hanger. I just happen to have a surplus of these wiper blade inserts.
Whatever medium you use, it's probably best I tell you that this is not my original idea. I just wanted to share it. Being my first instructable, I expect errors in grammar, punctuation and such. I'll probably even give some false information. I only ask that you take it easy on me when informing me of such mistakes.
Also - NEVER PICK A LOCK YOU DON'T HAVE A RIGHT TO!
Step 1: Basic Design.
#1 (green background) has a shorter throw
#2 (wood background) has a longer, curved throw, theoretically giving more of a snap.
The only tools you'll *need* are a pair of pliers and/or vice grips and a Dremel or similar grinding tool.
For this tool, it's ideal to use one of the longer wiper inserts (if nothing else, just to have extra material). 20 or 22 inches will do nicely. For anyone wondering, these wiper inserts are the two metal strips found in almost all windshield wiper blades. Save them when you change your wipers, or maybe go scavenge some from the auto parts store's rubbish bins. Sometimes, those guys will collect these for you, if you're nice.
I also use these to make my tension wrenches, since I go through them so frequently (made an instructable for them - see it here).
So, let's get down to it.
I'll be using three different types of bending techniques with this instructable:
The bend - usually 90 degrees. Made by holding the piece with one set of pliers and bending against those pliers with your hand.
The twist - always 90 degrees. Use two sets of pliers, holding the flats of the piece, and twist away from one-another.
The curve - much tricker. Hold the non-flat sides of the piece with two sets of vice grips (pliers would theoretically work), and curve gingerly - so as to not break it along the curve.
One last note - I didn't actually measure anything. I think the best way to go about this is to do what looks or feels right to you.
Step 2: Pending for a Bending.
This loop should be approximately 8 inches or so from the side you intend to be the pick end. One full turn is enough, don't get fancy.
Step 3: The Right Stuff.
Step 4: Do the Twist
Step 5: Measure It Up
Also, for this example, I had to put a couple curves in the box to make it snap-to at the right spot, and at a flat angle. This proves tricky, unless you have some vice grips (and some patience), but it can be done. Just grip the metal on the non-flat sides and bend just like any other bend - just more gradual.
Also,put a twist in the last end, just further along than the twist in the other side of the box. Hopefully, the pictures will help. Use that twist to bend the end around itself and clip off the excess.
Step 6: Pick in a Box
Step 7: Go Try It Out.
One could easily create an entire instructable on using this device to the best of its ability, but that's for someone else - not me. Rest assured, it does indeed work, better on some locks than others, once you get used to its use.
As ever - NEVER PICK A LOCK THAT YOU DON'T HAVE A RIGHT TO!