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Chris Reeve Umnumzaan Folding Knife 3.675" S35VN Stonewash Blade, Titanium Handles - CRKUMNUM

Customer Reviews 4.800 Read 10 reviewsWrite a Review
Part Number: CRKUMNUM
Manufacturer: Chris Reeve Knives
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Chris Reeve Knives introduces the Umnumzaan, a new milestone in folding knives

Chris Reeve Knives describes this item as follows:

In every sense of the definition, Umnumzaan is a knife deserving respect. Developed from the 20+ year heritage of the Sebenza, this bold, innovative folding knife is one to be reckoned with for its inventive design features and ability to get the job done.

A ceramic ball creates the interface between the blade locking surface and the integral locking arm surface. The ball doubles to drop into a detent on the blade to ensure the blade does not open accidentally.

Typical of CRK, the pivot strength is more robust than other folders. The large pivot screw and pin are supported by large thrust washers. These perforated phosphor bronze washers reduce friction and double to retain the fluorinated grease for longer lubrication thereby extending the life of the knife.

The thumb lug doubles as the stop pin, ensuring a solid lockup. Around the lug is a polyurethane o-ring that acts as a shock absorber to cushion the impact of the lug against the handle. Never wishing to copy other designs without giving credit, Grant and Gavin Hawk originated the shock absorber concept in one of their many innovative designs. We appreciate their consent for Chris to use this adaptation of their concept.
  • Blade Material: CPM S35V Stainless Steel
  • Blade Hardness: 58-59 RC
  • Blade Finish: Stonewash
  • Blade Length: 3.675" (93.35 mm)
  • Blade Thickness: 0.140" (3.56 mm)
  • Handle Length: 4.77" (121.16 mm)
  • Handle Material: 6AI4V Titanium
  • Handle Thickness: 0.150" (3.81 mm)
  • Weight: 5 oz. (141.75 g)
  • Fittings: 303 Stainless Steel
  • Handmade in the USA

UPC Code: 004489

Semi-Custom or Midtech Knives are knives produced by a process in which the designer has more direct - but not complete - involvement; parts of these knives may still have been made by others.
Frame Lock
Frame Lock
Developed by Chris Reeve, it functions like a liner lock but the lock is comprised of one of the handle scales. It's an extremely strong and easy to manipulate lock.
Pocket Clip
Pocket Clip
Includes a pocket clip for easy accessibility and a more secure carry.
A tougher steel than S30V, it retains the excellent corrosive properties and ability to take an edge, but improves on the ability to hold that edge.
Titanium Handles
Titanium Handles
A nonferrous metal, it's prized for its high strength to weight ratio and is often used on higher end knives.
Made in USA
Made in USA
This product is USA born and raised.
4.800 (10 reviews)
4.8 out of 5 stars
5 star
4 star
3 star
2 star
1 star
4 out of 5
Hong Kong,
Apr 28, 2015
Pros: Blade Material, Overall Quality, Lock Ease of Use, Handle Feel, Blade Sharpness, Handle Material, None
Cons: Ease of Opening
Chris Reeve Umnumzaan
Overall Quality is great . Only the thumb stud position which made not easy to deploy .
5 out of 5
Sep 25, 2013
Pros: Lock Type, Handle Material, Handle Feel, Overall Quality, Pocket Clip, Ease of Opening, Weight, Lock Ease of Use, Blade Material
Cons: None
Great buy!
Great knife, but also really great customer service via Knifecenter, no problems in communication even though I live in Germany. The knife itself is built really well and I just can agree with the other reviews. If you are looking for a tactical folding knife that is designed and built without any flaw, you go very well with the Umnumzaan!
5 out of 5
Julian H.
Nov 23, 2012
Pros: Blade Material, Overall Quality, Handle Material, Handle Feel, Blade Sharpness, Pocket Clip, Lock Type
Cons: None
I was looking to fill some very specific requirements for my EDC. It is a thing I plan to have and use every day for many years. The Umnumzaan excels in all of my criteria (in no particular order): - Simple strong construction using few pieces. This CRK breaks down to 12 pieces with standard hex wrenches. It is easy to disassemble, clean, lube, and assemble. - Durable, neutral, resistant, and exceptional materials. The titanium, S35VN, 303 stainless, ceramic, and brass all conform to that nicely. - Focused and utilitarian. Not for show, just for work. - Great blade steel. I want a best-in-class steel for edge retention, sharpening ease, and hard but not too brittle. I want a great heat treatment too. The nice tasteful stonewash finish is a plus. - No blade wobble, extremley stable and reliable lockup. - Warranty. If it breaks under normal usage, I want it fixed or replaced. You always compromise on a folder. Fixed blades are simpler and better. However, the best knife is the one you have with you... so you might as well make it good. This knife meets and exceeds my standards for quality and design at every turn. Clearly they learned from the legacy of the Sebenza. This is beauty through form following function in every detail. It is a level of manufacturing precision we rarely see. An artefact, and a testament to human ingenuity. I use it every day to cut all manner of things with confidence. It will go all over the world with me for at least a decade to come.
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