HB-600; As used in the Utvaer, this is a true full tang blade. It's done in satin polished Sandvik 12C27, not laminated. The blade portion is about 4" long, 1 1/4" wide, and .118" thick. Overall it's 8 5/8" long. The two smaller holes in the handle are 7 mm in diameter, or about .275"
We now have the Tube Rivet that Helle Uses for this blade.
Be sure to get 2 pcs if you intend to make the same way Helle does