That's a gege ans-2 for sure but I guess you all know it by now
I've seen several of them lately. They are not just insanely hard to pick, but IMO both the carbide insert and the additional hard anti drill inserts make it really resistant to drill. Some even have steel pins inside them, but the one which are not steel have a real insidious anti pick from.
I think they are real high quality stuff. And it must be one of the most pick resistant 5 pin "normal" locks I know.
Rickthepick let us know how it went when you get it open

( rotary opening = drilling, right? )