Locks that work

I've read a few reviews where the key has snapped in Kryptonite locks too: My Kryptonite NY 3000 started getting stiff, presumably from rust, after just one week of ownership, although a drop of mineral oil and plenty of WD40 squirted where the hasp goes seems to have cured it.

Just 1 week?? Use WD40 to free up corrosion and rust, then you need some graphite lock lubricant to keep it slick. That should give some protection against the weather too. I've not tried it, I just read that's what you are supposed to do ¬.¬

The quality is inferior to my Krypto mini D and I'd feel less happy leaving it out in the rain.

Better to buy something higher quality that you can use outside. But a good alternative for indor use only. Imagine buying a few of these OnGuard locks instead of an Almax Security chain and padlock. It would look stupid but really secure.

Sure its not a high grade of stainless, but it is very thick.

It has to be hardened steel to resist cutting (except from diamond cutting discs of course).