I recently purchased a CUDA 2S and all of the info I have seen (including the printed material that came with it) shows the blade steel as ATS-34, but the actual blade is stamped as 154-CM. At some point was there a change in blade material?
PS - moderator, please delete the earlier incomplete duplicate post. The server was doing strange things.
PS - moderator, please delete the earlier incomplete duplicate post. The server was doing strange things.