Excuse the blurriness - cheap phone camera.
Tools used:
1. Craftsman rotary tool (the tool itself is very good construction, however, I would probably buy a Dremel accessory kit if you're serious about metal working)
2. Craftsman vice
3. Gloves
4. Goggles
Lock works and picks like normal. Will definitely help learning this lock (4 security pins) and I have a unmodified duplicate to practice blind.
Didn't think it would be so easy to make a cutaway. Only tip I have is what others have already said - take away a little bit of metal, re-examine the cuts and then take a bit more away.
The schlage cylinders are perfect for making these (no excess metal and metal is very soft). Btw, if I want to do the same for a master lock #1 can I use the same cutaway discs or do I need something tougher?
