I searched all of google and this forum without much luck. And if there is a post on here somewhere, no need for smart comments. Thanks in advance.
My question is about the slits, notches, whatever you want to call it.
For example-
Look at the example of the lock here. It has a notch at 12 o'clock.
http://www.gadgetsdirect.com.au/index.php?main_page=product_info&products_id=15802
This one has one at 12 and 3 o'clock.
http://www.best-b2b.com/Products/896/926-2/mini-tubular-lock_465704.html
This one has one at 12 and 6 o'clock.
http://www.lockpicks.com/browseproducts/Vending-Machine-Re-Key-Kit.HTML
So what are the differences? Is it security features or just for looks? Thanks again in advance.