by lunchb0x » 28 Jul 2008 9:40
it could be a Lockwood 530 entrance set, if you have the backset it should be stamped on that, the Lockwood cylinders have a very small tolerance which would make it harder to pick, but the 530 cylinders are really easy to pull apart so you can try taking some of the pins out to make it easier, but to learn with you will be better of getting another lock, Whitco profile cylinders (the screen door ones) are fairly easy to pick and are also cheap to buy, or you could also buy a cheap entrance set from somewhere like bunnings