The Boss – Designed Specifically for Left-Handed Users
"Umnumzaan" means "The Boss" in Zulu—and this knife lives up to its name. The Chris Reeve Umnumzaan is the most robust and technically advanced folding knife produced by Chris Reeve Knives. This version has been specifically built for left-handed users: the frame lock, thumb stud, and pocket clip are all configured exclusively for left-hand operation.
As an owner-operated knife store in Hamburg, we are one of the few German dealers offering the left-handed version of the Umnumzaan. If you're looking for a CRK and carry left-handed, there are few alternatives—and in our opinion, none better.
Engineered for Left-Handed Users – No Compromises
The Umnumzaan is available in a dedicated left-handed configuration that goes far beyond simply relocating the pocket clip. The Reeve Integral Lock—a frame lock positioned on the left side—has been designed from the ground up for left-handed operation. The dual thumb studs and pocket clip are also positioned accordingly. If you're left-handed and searching for a premium EDC knife, this is one of the very few truly serious options on the market.
CPM MagnaCut – 63–64 HRC, the Best Steel CRK Has Ever Used
Chris Reeve has transitioned the Umnumzaan to CPM MagnaCut—and this was a technical decision, not a marketing one. Developed by metallurgist Larrin Thomas, MagnaCut combines outstanding edge retention, toughness, and corrosion resistance in a single steel. Hardened to 63–64 HRC, the blade stays sharp for an exceptionally long time while remaining tough enough for demanding everyday tasks. Despite its substantial 3.6 mm blade stock, the hollow grind makes it a highly precise cutting tool.
The Reeve Integral Lock – A Frame Lock on Another Level
Chris Reeve invented the frame lock—and pushed the concept to its limits with the Umnumzaan. The ceramic detent ball also serves as the blade stop interface when the knife is open. This prevents the softer titanium lock face from wearing against the hardened steel blade tang over years of use. An overtravel stop prevents accidental overextension of the lock bar during disengagement. Phosphor bronze washers at the pivot reduce friction and help retain the fluorinated grease for longer periods. The result is the signature CRK action that feels as though the blade is running on glass.
Two Blade Shapes – One Decision
Drop Point (UMN-1001) – the more versatile choice. The sweeping blade profile, harpoon-style tip, and jimping recesses along the spine create a distinctive appearance while performing exceptionally well across a wide range of tasks. The finely tapered hollow grind delivers excellent cutting performance.
Tanto (UMN-1002) – the tougher choice. Chris Reeve's interpretation of the Tanto is unique: slightly curved and combining the cutting ability of a drop point blade with the reinforced tip strength of a traditional Tanto design.
Titanium, Glass Breaker, and 142 Grams
The sandblasted 6Al4V titanium handle with its machined crosshatch pattern provides a secure grip and gives the Umnumzaan a distinct appearance compared to the Sebenza and Inkosi. At 142 grams and an overall length of 21.4 cm, the Umnumzaan is not a discreet everyday carry knife—it is a statement piece. The blade tang functions as a glass breaker when the knife is closed.
Included in the package: 5/64" hex wrench, Chris Reeve Grease, microfiber cloth with CRK logo, and certificate of authenticity.
Frequently Asked Questions About the Chris Reeve Umnumzaan Left-Handed
What is the difference between the left-handed and right-handed Umnumzaan?
This is not simply a pocket clip conversion. On the left-handed model, the Reeve Integral Lock is positioned on the left side of the handle—the knife has been designed from the ground up for left-handed users. Right-handed users should choose the UMN-1000.
Is the Umnumzaan compliant with German §42a regulations?
No. The Umnumzaan features a frame lock, meaning the blade locks securely in place. Under German law (§42a WaffG), it is considered a one-handed locking knife and may only be carried in public with a legitimate reason.
What is the difference between the Umnumzaan and the Sebenza?
The Sebenza is CRK's classic and more refined folding knife. The Umnumzaan is larger, tougher, and more tactical in design, featuring a larger pivot, a more robust handle, and an integrated glass breaker. If you want a CRK as a hard-use working knife, choose the Umnumzaan. If you're looking for an elegant EDC, choose the Sebenza.
How do I maintain a Chris Reeve knife?
CRK recommends using the included fluorinated grease on the pivot. For normal everyday use, disassembling the knife once a year, cleaning it, and reapplying grease is sufficient. Keep the blade dry with a soft cloth—MagnaCut is highly corrosion-resistant, but it is not a license for neglect.
