It happened behind the scenes in the Weapon X series and Wolverine #164

The think about Sabretooths adamatium skeleton was that it only grafted to the bones not the tendons and joints. So Sabretooth can still get his hands, arms and head cut off just at the joints only.  
  
I'm still shocked he hasnt been brought back yet.

@z3ro180: @fortressofthemoon: @fesak:

Does anyone know what the thing he wore on his wrist was while he was in weapon x

And I read that he had adamantium put on his claws and only certain other places, then I read when he was taken back weapon x they put the metal back in him again. I am a pretty big wolverine fan and I have never seen saber tooth with adamantium claws and stuff of

Other than ultimate saber tooth Which was just to much lol