When you demand a blade that stays sharp longer than almost anything else on the market, CPM-S110V steel is the answer. This premium stainless tool steel from Crucible Industries has earned a legendary reputation among knife enthusiasts for one thing above all else: exceptional edge retention. If your everyday carry (EDC) involves hours of cutting cardboard, rope, or other abrasive materials, CPM-S110V is engineered to keep your knife performing long after other steels have dulled.
In this guide, we'll explore what makes CPM-S110V so special, how it compares to other premium blade steels, and highlight five outstanding knives from different manufacturers that showcase why this steel is the go-to choice for those who prioritize cutting longevity above all else.
What Is CPM-S110V Steel?
CPM-S110V is a high-alloy martensitic stainless tool steel produced by Crucible Industries using their proprietary Crucible Particle Metallurgy (CPM) process. This advanced manufacturing method atomizes molten steel into fine powder before consolidating it under high pressure and heat, creating a remarkably uniform distribution of very fine carbides throughout the steel. This fine grain structure enhances both toughness and grindability relative to traditional ingot metallurgy steels.
The chemistry of CPM-S110V is where its extreme performance begins. The alloy composition includes an exceptionally high 2.8% carbon, along with generous amounts of chromium (15.25%), vanadium (9.00%), niobium (3.00%), molybdenum (2.25%), and cobalt (2.50%). This carefully balanced formula delivers several key advantages. The massive 9% vanadium content creates an abundance of hard vanadium carbides, giving S110V some of the best edge retention in the knife industry. Meanwhile, the 15.25% chromium provides excellent corrosion resistance that exceeds many other conventional stainless steels.
What truly sets CPM-S110V apart is its ability to hold a working edge through incredibly demanding use. The high volume of vanadium and niobium carbides significantly increases the steel's edge-holding properties as compared to other particle metallurgy steels. For users who are willing to trade some toughness and ease of sharpening for unparalleled cutting longevity, CPM-S110V delivers performance that is difficult to match.
How CPM-S110V Compares to Other Knife Steels
Understanding where CPM-S110V sits in the broader landscape of blade steels explains why it has earned such a loyal following among serious users.
CPM-S110V vs. CPM-S90V: Both steels offer exceptional wear resistance from high vanadium content, but S110V contains even more carbon and vanadium, pushing edge retention further. In practical terms, the difference may be subtle, but S110V represents the pinnacle of Crucible's wear-resistant stainless steels.
CPM-S110V vs. M390 / 20CV: These high-vanadium stainless "super steels" are edge-retention champions with excellent corrosion resistance. S110V offers comparable or slightly better edge retention while maintaining similar corrosion resistance, though M390 is generally considered easier to sharpen and tougher.
CPM-S110V vs. CPM-3V: CPM-3V is legendary for extreme toughness. S110V cannot match 3V's impact resistance but delivers dramatically better edge retention and wear resistance. These two steels serve fundamentally different purposes—choose 3V for toughness, S110V for edge holding.
CPM-S110V vs. MagnaCut: MagnaCut was engineered to balance toughness, edge retention, and full stainless corrosion resistance. S110V offers better wear resistance and edge retention than MagnaCut, but MagnaCut counters with significantly better toughness and easier sharpening.
The Bottom Line: CPM-S110V delivers best-in-class edge retention and excellent corrosion resistance in a stainless powder metallurgy package. For users who prioritize maximum cutting longevity and are willing to invest in proper sharpening equipment, S110V offers performance that few other steels can match.
5 Outstanding CPM-S110V Knives Worth Carrying
Here are five exceptional knives that showcase why CPM-S110V continues to be a favorite among discerning knife enthusiasts. Each brings something unique to the table while delivering the legendary edge retention this steel is known for.
1. Spyderco Para 3 — Folding Knife
The Spyderco Para 3 is the compact sibling of the legendary Paramilitary 2, offering all the performance in a more pocket-friendly package. This premium version features a 2.95-inch full-flat-ground blade crafted from CPM-S110V stainless steel, boasting exceptional edge retention and corrosion resistance. The blade's leaf-shaped profile provides a long, gently curved cutting edge and a sturdy utilitarian point. The handle features textured midnight blue G-10 scales—the signature color of Spyderco's elite CPM-S110V family—and the renowned Compression Lock mechanism delivers rock-solid blade security with effortless one-handed operation. A four-position pocket clip supports left or right-side tip-up or tip-down carry. For those seeking a compact EDC tool that refuses to quit, the Para 3 in S110V is a top-tier choice.
2. Zero Tolerance 0470S110V — Folding Knife
The Zero Tolerance 0470S110V Factory Special Series represents a collaboration between ZT and renowned designer Dmitry Sinkevich, combining premium materials with refined aesthetics. This handsome flipper features a 3.4-inch drop point blade crafted from CPM-S110V powder metallurgy stainless tool steel with a black DLC coating for enhanced corrosion resistance and tactical appeal. The KVT ball-bearing pivot system and flipper tab ensure fast, smooth deployment. The handle is constructed from black DLC titanium with a striking copper insert that develops a unique patina over time, while a titanium clip completes the refined look. Proudly made in the USA, the 0470S110V is a highly practical, easy-to-EDC design that handles a wide range of tasks and looks good doing it.
3. Spyderco Native 5 Lightweight — Folding Knife
The Spyderco Native 5 Lightweight CPM S110V combines the highly evolved form, function, and ergonomics of the Native 5 with state-of-the-art CPM-S110V blade steel. The 2.95-inch full-flat-ground blade delivers exceptional wear resistance and corrosion resistance, while the refined back lock mechanism locks the blade securely in the open position. The lightweight, injection-molded fiberglass-reinforced-nylon (FRN) handle features Bi-Directional Texturing for an exceptionally positive grip, and the dark blue color identifies it as part of Spyderco's elite S110V family. The Trademark Round Hole and versatile four-position pocket clip make both carry and operation completely ambidextrous. At just 2.5 ounces, this knife practically disappears in the pocket while delivering full-sized cutting capability.
4. Spyderco Military Model — Folding Knife
Originally created to meet the needs of deploying military personnel, the Spyderco Military Model has since become one of Spyderco's most popular and iconic knives. This elite version features a broad 4.00-inch full-flat-ground blade crafted from Crucible's CPM-S110V stainless tool steel. The generous blade length offers amazing edge geometry and cutting performance, while an oversized Trademark Round Hole ensures swift, reliable one-handed opening—even while wearing gloves. The blade is paired with a lightweight, open-backed handle featuring textured dark blue G-10 scales, nested stainless steel liners, and a sturdy LinerLock mechanism. For those who appreciate a larger folding tool with uncompromising edge retention, the Military Model in S110V delivers in every way.
5. Kershaw Link — Folding Knife
The Kershaw Link brings premium CPM-S110V performance to an accessible, everyday carry-friendly platform. Featuring a 3.25-inch drop point blade with a stonewashed finish, this knife offers the exceptional edge retention and corrosion resistance that S110V is known for in a slim, comfortable package. The aluminum handle provides a lightweight yet durable foundation, while Kershaw's assisted opening mechanism and flipper tab ensure rapid, reliable deployment. A sturdy liner lock secures the blade during use, and the deep-carry pocket clip keeps the knife discreetly positioned for quick access. For users seeking an affordable entry point to CPM-S110V performance without sacrificing quality or functionality, the Link represents an outstanding value proposition.
Why CPM-S110V Deserves a Place in Your Collection
The knife world loves chasing the latest "super steel," but there's profound wisdom in choosing a material that simply works—day in, day out—delivering the cutting performance that serious users demand. CPM-S110V isn't the easiest steel to sharpen, and it won't win competitions for absolute toughness. What it will do is deliver exceptional edge retention, excellent corrosion resistance, and the kind of long-lasting sharpness that keeps your tools ready when you need them most.
CPM-S110V occupies a unique position in the steel hierarchy: it offers best-in-class wear resistance and edge holding in a stainless powder metallurgy package. The knives featured above—from the compact Spyderco Para 3 to the full-sized Military Model—showcase the versatility of this remarkable steel. Whether you prefer the refined titanium elegance of the Zero Tolerance 0470 or the accessible value of the Kershaw Link, there's a CPM-S110V tool that fits your needs.
With proper care and the right sharpening equipment, these knives will reward you with years of exceptional cutting performance. If you're ready to experience the edge-retention capabilities that have made CPM-S110V a favorite among custom knifemakers and serious enthusiasts, one of these outstanding knives might just be your next reliable companion.
