Tojiro DP nakiri, two model numbers?

[HomeCook]

Wanted to buy one as a gift and noticed two model numbers offered in various places (all reputable), both claiming to be the Tojiro DP nakiri, F-502 and F-881. Is one an upgrade of the other or are both identical? TIA!

 

[sharptools]

F-501 is DP, F-881 is Moly I believe

 

[Pensacola Tiger]

The F-881 is the Tojiro SD Molybdenum Vanadium Steel Series: http://www.tojiro-japan.com/products/255/

The F-502 is the Tojiro DP Cobalt Alloy Steel Series: http://www.tojiro-japan.com/products/224/

 

[richard]

Get the DP one in case that wasn't clear.