I assume it is 12C27, just like the companion. I have an orange Companion to compare it to, and can’t detect any difference (not that I am qualified to do so. As for thickness, I compared it to the Companion blade. I may have put a vernier caliper to it, I don’t recall, and don’t recall the numbers, but you can see the difference. There are a couple of other small differences. The orange of the Bahco looks a little dingy compared to the companion, and the black insert on the handle is a bit harder to the touch. But yeah, screaming deal. Of course, in the range we are talking about, the deal doesn’t mean too much, unless you are looking for a dozen or so, to give away or to salt in key locations around the homestead.