Some listings give hardness or edge-retention details. For example, D2 is shown at HRC 58–62, and CPM 3V is described for extreme chip resistance and long-lasting edge performance.
The models use a variety of steels, including 8Cr13MoV, CPM 3V, D2 and Nitro‑V on compact fixed blades; kitchen-style knives use stainless or high‑carbon stainless steels.