The Stiffy is Kunwu unplugged from the pivot: the brand's whole steel obsession applied to fixed blades. Kunwu Knives brings the same finishing standard here as on its titanium folders, and the three-knife lineup ladders neatly from pocketable utility to camp workhorse inside the Kunwu family.
The letters run small, medium, large. The Stiffy P is the compact: a 3 inch spear point at 6.69 inches overall and 3.66 ounces, in canvas micarta or purple G-10, sized to ride a belt or pack strap unnoticed. The Stiffy D steps up to 3.54 inches of blade on an 8 inch footprint in black or brown micarta, the do-everything middle child. The Stiffy G, its letter a nod to the Gringo folder, stretches a harpoon blade to 6.1 inches over 5mm stock for real chopping and batoning duty. All three ship with a Kydex sheath and nylon belt clip.
Uddeholm tool steels at hardness levels most production fixed blades never attempt. The P runs Vanadis 8 and the D runs Vanadis 4, both at 63 to 65 HRC, cold-work powder steels that hold an edge far past anything stainless in this price range. The G's Assab 88 shares its composition with Sleipner and trades a little of that wear resistance for field toughness. None of the three is stainless, which is precisely what the DLC and Teflon coated builds are for. Our full steel breakdown puts the Vanadis grades in context.