It has probably been 15 years since I bought these Benchmade knives at a gunshow. They were discontinued models at the time and I only paid $35 each IIRC. They are 440c steel and are the only ones I've seen in that steel. Newer knives have a round thumb hole instead of the oval used here. I gave the one with the serrated blade to my son about 8-9 years ago and kept the other for me. He works in electrical construction and has used it hard. Some will cringe at what they would consider neglect, but he says it has been invaluable in his job and he loves it just as it is. I have a box full of knives and offered him a replacement, but he doesn't want to use anything else.