This is a cool Keychain for you lockpickers out there and just about anyone who's interested how a simple Masterlock padlock works. And wants to show it off to their friends. You can even practice picking on the go with it or teach others how to pick locks.
What you need
-Masterlock #7 (You can do this with other locks such as the Masterlock #3 but then it wont be a keychain)
-Dremel cutoff disk
Step 1: Get a MasterLock #7
You need to get a master lock #7 to have a keychain cutaway as i said before you can do this with other locks but it probably wont be a keychain cause the master lock number 7 are tiny locks small enough to fit on you keys and to be carried around in you pocket
Step 2: Remove the "Master Band"
Slip a flathead Screwdriver underneath the plastic band and pull it up but becarefull not to rip it
Step 3: Cuttign off the Studs
Ok now its time to get rid of the little studs that is holding the bottom plate of the lock. You can do this with a dremel by just grinding them off
Step 4: Taking off the bottom plate
Now you want to remove the bottom play to get the lock cylinder out and start making this into a cutaway. You can also do this with a flat head screw driver or a small chisel tip. Like show in the pictures
Step 5: Pushing out the rest of the studs
Now we need to push out the rest of the studs. In my case i couldnt get the bottom plate off. So i hade to push the rest of the studs. You will need to get a nail and nail down the studso it pops out on the other side allitle bit.
Step 6: Marking your cuts
You will need to mark your cuts now. You can use a sharpie or a good pencil. And now you can pull out the cylinder and spring.