Intelligent design advocate Michael Behe coined the term "irreducible complexity," which means "a single system composed of several well matched, interacting parts that contribute to the basic function of the system, wherein the removal of any one of the parts causes the system to effectively cease functioning."
It certainly describes this new folder by Glenn Klecker, award-winning knife and tool designer from Silverton, Oregon. He has named it after his son: Nathan's IRreducible complexity Knife, or NIRK™. There are just two well-thought out pieces, plus a blade pivot screw.
The innovation is Glenn's use of 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 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 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 high-carbon stainless steel blade is a utilitarian drop point shape with a deep belly, high hollow ground for easy cutting, and with a swedged top edge to aid penetration. It is a hefty 0.131" thick. The blade can be opened with either hand using the oval thumb hole.
The 5185 tactical model receives a black oxide non-reflective coating, and has a Combined Razor-Sharp & Triple-Point™ Serrated edge.
The NIRK also comes with a stainless steel pocket/gear clip.
There you have it: a simple, flat, almost indestructible folder. All you need to do is oil and sharpen it occasionally and you have a friend for life. It 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.
In the knife world, it is a fine example of intelligent design.
I'm getting married in a couple weeks and got these for my groomsmen, ushers, our minister, and her father. I had a few doubts but the sheet metal design looks better than I expected and great A smaller size would be a nice option to offer for my EDC preference however.
paul
2012-02-08 EASTON, PA
just got new knife its the NIRK in black very sharp. love it will be buying two more for my sons. very soon . got my knife at my gun shop. great knife. paul
Wayne
2010-08-12 Gladewater, TX
Great knife Fine workmanship and design. Balance of minimalism and still fully functional and very sharp Three pieces (including the belt clip)
Jeffrey
2010-07-13 St. Joseph, MO
I'll admit it off the top, I don't know much about knives. That said I've been happy with this product. Has easily cut everything I've attempted to cut with it. It doesn't have the edge an expensive knife will have, but for the cost I have no complaints. Like I said, it has cut everything I've tried to cut with ease.
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