The CRKT NIRK Folding Knife was designed by Glenn Klecker, award-winning knife and tool designer from Silverton, Oregon. The name comes from his son: Nathan's IRreducible complexity Knife, or NIRK. Made so that every piece serves an irreplacable function, the CRKT NIRK Knife contains just two well-thoughtout pieces, plus a blade pivot screw. The innovative design allows the CRKT NIRK to be manufactured from a single sheet of stamped and folded stainless steel to serve as the folder frame, back spacer, spring and lock, resulting in a solid lockback folder. The geometry of the cutout areas on this CRKT Knife is critical, carefully calculated to provide just the right spring action when the rear of the spine is pressed. At the front of the frame, the lock tab mates with a notch in the blade to provide safe lockup. The tighter the grip on the knife handle, the tighter the lockup, making this an exceptionally safe design. It is very difficult, if not impossible, to accidentally release the lock, and it is very, very strong. When the blade is closed, the same lock tab ramps over a rounded detent to hold the blade in the closed position.
The CRKT NIRK Folder Knife sports a high-carbon stainless steel blade with a utilitarian drop point shape and a deep belly, high hollow ground for easy cutting, and a swedged top edge. The NIRK blade is a hefty 0.131" thick. The blade can be opened with either hand using the oval thumb hole. The CRKT NIRK Knives give you a flat, almost indestructible folder knife. The CRKT NIRK Folder Knife is priced so you can afford several: one for the toolbox, one for the backpack, one for the truck, one for the boat, one for the survival kit. All models have stainless steel pocket/gear clips.
CRKT 5180: CRKT Klecker NIRK Knife - Satin Blade, Brushed Frame, Razor-Sharp Edge - The 5180 sport and work model has a high satin blade finish, brushed frame and Razor-Sharp cutting edge.
CRKT 5185: CRKT Klecker NIRK Knife - Black Blade, Black Frame, Combo Edge - The 5185 tactical model receives a black oxide nonreflective coating, and has a Combined Razor-Sharp & Triple-Point Serrated edge.