Grimsmo Knives

Grimsmo Knives: Canadian Precision, Transparency and Modern CNC Craftsmanship

Grimsmo Knives built its reputation by showing collectors almost everything. Long before manufacturing transparency became a common marketing strategy, John Grimsmo was documenting the trial-and-error process of learning CNC machining and knifemaking on YouTube. That openness eventually became part of the identity of the Ontario company he built with his brother Erik.

The brand’s roots go back to John’s garage work in 2008, while the modern Norseman era took shape around 2012. From those beginnings, the company grew into a specialized Canadian manufacturing shop known for extreme machining precision, highly tuned folding-knife action, distinctive titanium milling, and a willingness to manufacture components in-house that many knife companies would simply purchase from outside suppliers.

Collectors exploring comparable premium folders can browse WBKC’s Folding Knives and Knife Knowledge resources.

From Knife Making Tuesday to a Global Collector Brand

John Grimsmo did not begin as a traditionally trained bladesmith. He became a self-taught CNC machinist and used the internet as both accountability and classroom.

With encouragement from his wife, Meg, John dedicated one day each week to making knives and documenting what happened. The series became Knife Making Tuesday. Instead of editing out mistakes, broken tools, programming problems, failed ideas, and manufacturing setbacks, he showed them.

Erik Grimsmo later joined the business, bringing complementary organizational, technical, and business skills as the shop expanded.

That early transparency did something unusual. Collectors were not simply seeing the finished knife. They were watching the process by which the makers learned to produce it.

For buyers interested in how construction method affects a premium knife, How to Choose a Custom Knife provides additional context.

Why Transparency Became Part of the Product

Most knife brands show the finished object and hide the manufacturing problems that came before it.

The Grimsmo approach was almost the opposite.

Videos documented machining setups, CAM programming, fixturing, tool failures, equipment purchases, surface-finish experiments, bearing development, hardware revisions, and the constant search for tighter process control.

That transparency helped build trust with collectors because the manufacturing story itself became visible.

It also pushed the company beyond the traditional knife audience. Machinists, small manufacturers, entrepreneurs, and engineering-minded viewers could follow the same content because many of the lessons applied well beyond pocketknives.

The “Full Grimsmo” Philosophy

The company describes its internal philosophy as “Full Grimsmo”—a shorthand for continuing to refine a process even after it already works.

That mindset appears in the way the shop approaches tolerances, bearings, screws, clips, pivots, finishes, and machining processes.

Instead of treating those details as secondary hardware, the brothers treat them as integral parts of the finished product.

That is why a Grimsmo folder is often best understood as a precision-manufactured mechanical system rather than simply a blade attached to two titanium scales.

The Norseman: The Knife That Defined the Brand

The Norseman is the model most closely associated with the company.

Introduced in the early 2010s, it immediately stood apart because of its unconventional compound-ground recurve blade. The profile is difficult to confuse with almost anything else in the premium folder market.

Historically, Norseman blades have been strongly associated with cryogenically treated RWL-34, while premium configurations have also appeared with Damasteel. The handles are typically machined from 6Al-4V titanium and can be configured with a wide range of milling patterns, anodized colors, hardware treatments, and finishes.

The knife runs on ceramic bearings and uses titanium frame-lock construction with a hardened steel lockbar interface.

The result is a folder whose collector appeal comes from both appearance and mechanical feel.

Why Norseman Action Became So Influential

The Norseman arrived during a period when high-end collectors were paying increasing attention to flipper action, detent tuning, bearing systems, and controlled blade movement.

Grimsmo took those details unusually seriously.

Custom bearing systems, hardened running surfaces, carefully controlled lock geometry, precise pivots, and repeatable machining allowed the blade to deploy quickly and close with extremely little friction.

The smooth, gravity-assisted closing action became one of the model’s defining characteristics.

It would be an overstatement to claim that one knife invented the modern “drop-shut” trend. However, the Norseman unquestionably became one of the knives collectors referenced when discussing what elite bearing action could feel like.

The Rask: A More Restrained Counterpoint

The Rask proved that the brothers were not dependent on one unusual blade profile.

Where the Norseman is visually aggressive and mechanically theatrical, the Rask is slimmer, lighter, and more restrained.

The model uses a more traditional drop-point blade and a narrow titanium frame-lock platform. It preserves the same emphasis on precision, custom hardware, ceramic bearings, and machining quality while shifting toward elegant everyday carry.

That contrast matters.

Collectors can appreciate the manufacturing philosophy behind the company without necessarily wanting the highly recognizable Norseman silhouette.

The Fjell: The Newest Knife Family

The Fjell is the newest knife family currently identified by the company.

Its name translates to “mountain” in Norwegian, continuing the Nordic influence that runs through much of the Grimsmo identity.

Its arrival is significant because the company has maintained a relatively small knife catalog for years. Rather than releasing new models constantly, the shop tends to spend long periods refining existing designs and manufacturing processes.

For collectors, that makes a genuinely new platform more meaningful than a routine seasonal release.

The Saga: The Same Philosophy Applied to a Pen

The Saga is not a knife, but it is one of the clearest demonstrations of the company’s engineering philosophy.

The premium writing instrument uses an in-house ball-lock mechanism with ceramic bearing balls, precisely machined metal components, and multiple finishes and material options.

Grimsmo states that nearly every Saga component is manufactured by its Canadian team, with only a small number of components supplied externally.

The pen also became the subject of its own manufacturing video series, extending the transparency model that began with Knife Making Tuesday.

In-House Component Control

One of the strongest reasons collectors distinguish Grimsmo from ordinary premium production knives is component control.

The shop has invested heavily in equipment capable of manufacturing pivots, screws, clips, bearing systems, and other small components internally.

That level of vertical integration would make little sense if the only goal were to produce knives as inexpensively as possible.

Instead, it gives the company far greater control over dimensions, fit, surface finish, revisions, and quality.

The approach is closer to vertically integrated precision manufacturing than conventional knife assembly.

Materials and Finishes

Depending on model and production period, documented materials include:

• RWL-34
• Damasteel
• CPM MagnaCut
• 6Al-4V Grade 5 titanium
• 17-4PH stainless steel
• Si3N4 ceramic bearings
• Timascus and other specialty materials on selected configurations

Handle treatments are equally important.

Collectors may encounter Crosshatch, Starburst, Diamond, and other CNC-machined titanium textures, along with raw titanium, stonewashed surfaces, anodized colors, contrasting hardware, and specialty materials.

The milling pattern and finish can completely change the personality of the same model.

Buyers’ Choice and Individual Configuration

The company’s current purchasing system reinforces that configuration-driven identity.

Customers selected through the Product Interest system may receive access to Buyers’ Choice, where available options can include handle pattern, handle anodizing, hardware anodizing, blade type, and blade finish.

Special materials such as inlays, Damasteel, and Timascus may also be offered when available.

That means two knives with the same model name and a similar production period can still look dramatically different.

For the secondary market, exact configuration matters.

Serial Numbers, Cards and Provenance

Individual serial numbers are an important part of the collector experience.

Factory cards can document model, serial number, blade steel, finish, handle material, milling pattern, hardware color, bearings, and completion date.

That information becomes particularly useful years later when unusual color combinations or discontinued specifications appear on the secondary market.

WBKC therefore treats the original card, case, tools, lubricant, and other factory accessories as part of the complete collector package rather than incidental extras.

Learn more about our approach to Provenance, How We Grade, and Why Collectors Trust Us.

Norseman #5683: A WBKC Collector Example

A Norseman recently handled by WBKC demonstrates how much information one factory card can preserve.

Norseman #5683 was completed February 7, 2022. Its factory documentation identifies a cryogenically treated RWL-34 blade with stonewashed finish, silver stonewashed 6Al-4V titanium handles with Crosshatch milling, purple hardware, and Si3N4 ceramic bearings.

The knife also retains its original Grimsmo hardshell case, signed factory card, Nano-Oil, and T9 tool.

Nothing about that configuration is complicated in isolation. The appeal comes from how the details work together: understated silver titanium, tactile Crosshatch milling, a stonewashed blade, and small purple accents.

For a collector, that is much more useful information than simply knowing the knife is a Norseman.

A Small Catalog by Design

Compared with large production brands, Grimsmo Knives maintains a deliberately narrow product family.

The current lineup centers on the Norseman, Rask, Fjell, and Saga.

That limited catalog reflects the way the shop develops products.

Instead of releasing dozens of designs and moving on, the team continually refines machining strategies, hardware, finishes, and process control around a relatively small number of platforms.

This is one reason serial number and production era can matter even when two knives share the same model name.

WBKC Collector Perspective

What makes Grimsmo interesting is not simply that the knives are machined accurately.

Plenty of modern knives are accurately machined.

The difference is how visibly the company has turned manufacturing itself into part of the brand.

Collectors can trace the shop’s progression from garage experiments and early Norsemans through professional CNC mills, Swiss-style lathes, proprietary hardware, advanced bearing systems, increasingly sophisticated finishes, and a mature Canadian manufacturing facility.

That history gives older pieces context.

An early Norseman can represent the formative period of the company. A later Norseman can show years of process refinement. A Rask demonstrates that the same manufacturing philosophy could produce a very different knife. The Fjell shows where the company is heading next.

For WBKC, exact model, serial number, configuration, production era, condition, and completeness all matter when evaluating one of these knives.

Collectors searching for earlier or discontinued configurations can browse Preowned Knives.

Shop Grimsmo Knives at We Buy Knife Collections

We Buy Knife Collections specializes in premium custom and small-batch folders, discontinued configurations, and individually documented collector knives sourced from established private collections.

Available Grimsmo inventory may include Norseman, Rask, Fjell, and other significant configurations with different steels, milling patterns, anodizing, hardware, and factory accessories.

Browse Shop All Knives, Shop by Maker, or New Arrivals for current inventory.

If you own one premium folder or an entire collection, review What We Buy or begin with Sell Your Collection.

Grimsmo Knives FAQ

What is Grimsmo Knives?

Grimsmo Knives is a Canadian precision-manufacturing company built by brothers John and Erik Grimsmo. The company is best known for the Norseman and Rask folding knives, along with the newer Fjell and the Saga pen.

Who founded Grimsmo Knives?

John Grimsmo began the project in his garage and documented his progress through Knife Making Tuesday. His brother Erik later joined the business and became a central part of the company’s growth.

When was Grimsmo founded?

The company’s official history traces John’s garage work and YouTube journey to 2008. The modern knife-brand era took shape in the early 2010s, with the Norseman appearing around 2012.

Where are Grimsmo knives made?

They are made in Stoney Creek, Ontario, Canada. The company describes its products as made in Canada and performs extensive machining, assembly, and finishing through its own team.

What is the Grimsmo Norseman?

The Norseman is the company’s signature folding knife, recognizable by its unusual compound-ground recurve blade, machined titanium handles, ceramic-bearing action, and individually serialized configurations.

What is the Grimsmo Rask?

The Rask is a slimmer, more conventional drop-point folder that retains the company’s high-tolerance machining, titanium frame-lock construction, proprietary hardware, and ceramic-bearing system.

What is the Grimsmo Fjell?

The Fjell is the newest knife family currently listed by the company. Its name means “mountain” in Norwegian and continues the Nordic naming theme associated with the brand.

What is the Grimsmo Saga?

The Saga is a precision-machined writing instrument using a proprietary ball-lock mechanism, ceramic bearing balls, and extensively in-house-manufactured metal components.

What steels does Grimsmo use?

Depending on model and production period, documented blade materials include RWL-34, Damasteel, and CPM MagnaCut.

What handle patterns are available?

Configurations have included Crosshatch, Starburst, Diamond, and other CNC-machined titanium textures, along with different anodized colors, stonewashed finishes, and contrasting hardware.

Are Grimsmo knives custom or production knives?

They are best understood as highly refined small-batch, precision-manufactured knives. The company uses advanced CNC equipment and extensive in-house component manufacturing rather than the traditional one-maker handmade custom model.

How do you buy a new Grimsmo knife?

The factory currently uses inventory drops and Product Interest lists. Selected buyers may receive Buyers’ Choice access, allowing them to select from available handle patterns, colors, hardware, blades, and finishes.

Why do Grimsmo serial numbers matter?

Serial numbers and factory cards help identify the exact configuration, completion date, materials, finish, hardware, and other details of an individual knife. That becomes especially valuable on the secondary market.

Where can I buy preowned Grimsmo Knives?

We Buy Knife Collections periodically offers individually documented Norseman, Rask, and other premium Grimsmo configurations sourced from established private collections.

How can I sell a Grimsmo knife?

Photograph the knife open and closed, both handle sides, blade, serial markings, original factory card, case, tools, lubricant, and other included accessories, then submit it through Sell Your Collection for review.