The DPx Handle Inversion Tool is constructed of martensitic CPM S35-VN heat treated steel.
The DPx Centric system uses a rugged carabiner and an innovated rotating, locking patent pending edge protector. That means there is no need for a bulky or heavy sheath since the blade edge is revealed with a flick of a finger as the guard smoothly becomes the handle.
When not in use the guard snaps back and locks due to the clever.