Not hardened? Garbage? waste of money? Yes to all 3. Look at the pictures and note I tried to use the smallest one. He immediately rounded off the tip. The other two also have damage just because they were in the box together. Look at the glitter on the edges, it's a damage to the edges even without using them. I don't think they are any harder than aluminum as mild steel rounded the tip (to enlarge it, not create a hole). It can't cut mild steel, then it's worthless. Durability 0 as they were only worn in the box. And for the first time, an instant top role. Do not buy. It's garbage. I would like to give 0 stars.