Chris Reeve Umnumzaan Folding Knife 3.675" S35VN Stonewashed Blade, Milled Titanium Handles


Part #: CRKUMNUM | Chris Reeve Knives
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CRKUMNUM: Umnumzaan
Chris Reeve Knives
In every sense of the definition, the 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.

Chris Reeve had the working hand in mind with the tough build of the Umnumzaan, or Boss in Zulu. The Umnumzaan was the first introduction of the Ceramic Ball-End Integral Lock mechanism. Sturdy and over-built, the Umnumzaan brings the strength of a fixed blade straight to your pocket. With a sandblasted crosshatched grip and a wide lock bar, the Umnumzaan is meant for a non-slip grip and action for a large or gloved hand.

Typical of Chris Reeve Knives, 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 are designed to reduce friction and to retain the fluorinated grease for longer lubrication thereby extending the life of the knife.

Ceramic Ball - The Integral Lock's Upgraded Interface

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.
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. Chris Reeve Knives appreciates their consent for Chris to use this adaptation of their concept.
  • Blade Length: 3.675"
  • Closed Length: 4.77"
  • Overall Length: 8.445"
  • Blade Material: CPM-S35V Stainless Steel
  • Blade Thickness: 0.140"
  • Blade Hardness: 59-60HRC
  • Blade Style: Drop Point
  • Blade Grind: Hollow
  • Blade Finish: Stonewash
  • Handle Material: Milled 6Al4V Titanium 
  • Handle Thickness (Per Side): 0.150"
  • Locking Mechanism: Frame Lock
  • Pivot Assembly: Washers
  • Pocket Clip: Titanium (Tip-Up, Right Carry)
  • Weight: 5.0 oz.
  • Designer: Chris Reeve
  • Fittings: 303 Stainless Steel
  • Made in the USA

UPC Code: 004489

Semi-Custom or Mid-Tech 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.
4.818 (11 reviews)
4.8 out of 5 stars
5 star
4 star
3 star
2 star
1 star
5 out of 5
Oct 08, 2015
Pros: Blade Material, Overall Quality, Handle Feel, Weight, Handle Material, Blade Sharpness
Cons: None
Ok... So now I "GET IT"
Bought this a few weeks ago, never had hands on a Reeve knife before and the looks of the Sebenza just didn't do it for me. Once you feel this knife and open and close it a few times, you realize that this is a TOOL and meant to be used as one. Not something flashy to spruce up your pocket or to be fretted over if you scratch or ding it, no, this beast is meant to be used. It resides in my pocket with a Benchmark 940-1 (carbon handle) and an 810 Contego. Those both feel like children's toys in comparison. Kind of like the feel between a composite pistol like the Glock and the heft and feel of a good old 1911... Expensive? Yep.. Worth it, hell yes.
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!
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