In Astonishing X-Men #5, Ord, an alien villain hailing from the Breakworld, claims the following:
there is no substance on earth this blade cannot cut through.
Yet, Wolverine with his beta-adamantium claws is standing in the same room. Is Ord bluffing, or is his disc-like weapon indeed made of a unique metallic material ? And would it be able to cut through Colossus's Osmium skin (who appears later on in the comic) ?
The Marvel wiki doesn't have more information, only Ord's quote.