Not exactly sure, I have been wondering that myself... if you trade it from another Pokemon game that will work... please improve if you know for sure! :)
The effect of Razor Claw is you give it to a Sneasel and level it up after 8pm to evolve it into weaville
in the dungeon
All you have to do is attach a Razor Claw to it and level it up at night.
to get a weavile you have to level up a sneasle while holding the razor claw at night.
i don't think there is a "sharp claw" if you mean razor claw, its at victory road 1st floor, and route 224
you can not get it from Pokemon platinum you can trade in to diamond or pearl
Route 244
On Victory Road's first floor
get a razor claw and a sneasel and level up
No wild Pokemon hold the item razor claw but you can find razor claw at Route 224, Victory Road and available to buy at the Battle Tower (D/P) -Clensen
its gone u dont get another
In the low right corner of Route 24.
you make it hold a razor claw and level up at night.
catch sneasle, and trade it holding a razor claw. No you have to give it a razor claw and level it up at night
Level your Sneasel up while it is holding a Razor Claw.
route 224........... but i think you can also get one at the fight area
Sneasel evolves by letting it hold a Razor Claw and then leveling it up at night.