by pinky » 29 Oct 2004 15:31
any locksmith shop , or you can buy plenty on ebay. all can be drilled , snapped and manipulated to easy to be high security overall, but if you want hard to pick, then look for corbin, gege , evva, and some iseo can challenge you.
if no joy on ebay , then try locksmiths or call round pvc door retailers fitters, they have alot of old and new cylinders knocking around, failing that go to an architectural ironmonger from yellow pages.
if you want 1 to fit to your door then look at iseo R11 11 pin dimple key locks, good security.