Chris Reeve Large Sebenza 31 L31-1685-65 open — CPM MagnaCut stonewashed Insingo blade, glass blasted 6AL4V titanium, blue hardware, Reeve Integral Lock

Chris Reeve Sebenza 31 L31-1685-65 CPM MagnaCut Insingo — hollow grind, 3.61 in, 0.12 in thick, 63-64 HRC, stonewashed, blue hardware accent

Chris Reeve Sebenza 31 L31-1685-65 glass blasted 6AL4V titanium — blue hardware, Reeve Integral Lock, single lug, tip-up clip, 4.7 oz

Chris Reeve Sebenza 31 L31-1685-65 Reeve Integral Lock ceramic ball — titanium frame integral lock, zero blade play, glass blasted handle, blue pivot

Chris Reeve Large Sebenza 31 - 3.61" CPM MagnaCut Stonewashed Hollow Grind Insingo Plain Blade, Glass Blasted 6AL4V Titanium Handle, Blue Hardware - L31-1685-65

SKU: L31-1685- 65

Chris Reeve

$550.00

Overview
Warranty Information

Product Description

The Chris Reeve Large Sebenza 31 L31-1685-65 is the Insingo configuration on the most precise production folding knife made in the USA — and it is the configuration that converts Sebenza buyers who carry their knife as a working tool. CPM MagnaCut at 63-64 HRC. Hollow grind. Insingo blade profile optimized for slicing. Glass blasted 6AL4V titanium handle. Blue hardware. Reeve Integral Lock with ceramic ball interface. Tip-up right carry. DOB April 14, 2026. Made in Boise, Idaho.

The blade is ground from CPM MagnaCut at 63-64 HRC — Crucible's particle metallurgy stainless steel engineered by Dr. Larrin Thomas to simultaneously deliver edge retention, toughness, and corrosion resistance at levels no prior stainless grade achieved together. The Insingo profile is the defining choice on this configuration: a modified blade geometry with a curved spine that drops toward a fine tip, delivering a primary edge optimized for slicing tasks where the full curved edge engages through the cut rather than concentrating force at a single point. The Insingo tip is thinner and more refined than a tanto and more aggressively swept than a standard drop point — it is the blade profile serious cutters choose when slicing performance is the primary goal. The hollow grind at 0.12" thin maximizes the cutting geometry behind the edge; the stonewashed finish provides a field-appropriate surface that wears well in daily carry. Blue hardware accents the pivot and furniture with a distinctive color that sets this configuration apart from the silver-hardware Sebenza variants.

The handle is precision-machined from 6AL4V titanium — the aerospace-grade alloy that is the Sebenza platform's standard — with a glass blasted finish that is smoother and more refined than sandblasting, providing excellent grip texture while increasing scratch resistance over standard titanium surfaces. The Reeve Integral Lock is machined directly from the titanium frame as an integral component; the ceramic ball interface between the lock bar and blade tang provides wear-free, consistent lockup over a lifetime of use. A black lanyard and single thumb lug complete the configuration. Offset stamped clip mounts tip-up for right carry. Made in Boise, Idaho, USA.

Steel: CPM MagnaCut particle metallurgy stainless steel, 63-64 HRC — edge retention, toughness, and corrosion resistance simultaneously; hollow grind at 0.12" thin for maximum slicing efficiency; stonewashed finish
Blade: 3.61" Insingo profile, hollow grind, stonewashed finish, plain edge — curved spine drops to fine tip; full curved edge engagement through the cut; slicing-optimized geometry; blue hardware accents
Handle: Glass blasted 6AL4V titanium — smoother and more refined than sandblasting; increased scratch resistance; blue accent hardware at pivot and furniture; 0.15" thin, 4.79" closed, 8.40" overall
Lock: Reeve Integral Lock with ceramic ball interface — machined from 6AL4V titanium frame as integral component; ceramic ball between lock bar and tang; wear-free, zero-play lockup for a lifetime
Clip: Tip-up right carry; stamped clip; single thumb lug; black lanyard included
Carry: 4.7 oz; DOB April 14, 2026; made in Boise, Idaho USA — Chris Reeve Knives; CRK lifetime guarantee

Sebenza buyers who carry their knife as a working tool and want slicing performance — the Insingo profile on CPM MagnaCut hollow grind is the most cutting-optimized blade configuration in the Sebenza 31 lineup. Blue hardware collectors who want the distinctive blue-accented Sebenza with glass blasted titanium. CRK buyers who want the latest production Sebenza 31 in a proven configuration with DOB April 2026.

Knifeworks is an authorized Chris Reeve Knives dealer — order the Chris Reeve Large Sebenza 31 L31-1685-65 online or call our team at 888-225-9775. Same or next business day shipping from Columbia, Louisiana, with the service Knifeworks is known for.

Specifications:

Product Type	Folding Knife
Product Brand	Chris Reeve Knives
Product Line	Large Sebenza 31 Insingo
Item Number	L31-1685
Designer	Chris Reeve
Blade Length	3.61 inches
Blade Steel	CPM MagnaCut Particle Metallurgy Stainless Steel
Blade Thickness	0.12 inches
Blade Profile	Insingo
Blade Grind	Hollow Grind
Edge Type	Plain Edge
Blade Style	Insingo
Handle Material	Plain
Blade Grind	Hollow
Blade Finish	Stonewashed
Handle Material	6AL4V Titanium
Handle Finish	Glass Blasted
Handle Thickness	0.15 inches
Hardware	Blue Accent Hardware
Lock Type	Reeve Integral Lock with Ceramic Ball Interface
Clip Position	Tip-Up, Right Carry
Pocket Clip	Stamped Titanium Clip
Configuration	Single Thumb Lug, Stamped Clip, Black Lanyard

Warranty Information

Chris Reeve Knives provides a lifetime guarantee against defects in materials and workmanship. For warranty service, contact Chris Reeve Knives directly at chrisreeve.com.

Product Videos

Custom Field

Product Type Folding Knife

Product Brand Chris Reeve Knives

Product Line Large Sebenza 31 Insingo

Item Number L31-1685

Designer Chris Reeve

Blade Length 3.61 inches

Blade Steel CPM MagnaCut Particle Metallurgy Stainless Steel

Blade Thickness 0.12 inches

Blade Profile Insingo

Blade Grind Hollow Grind

Edge Type Plain Edge

Blade Style Insingo

Handle Material Plain

Blade Grind Hollow

Blade Finish Stonewashed

Handle Material 6AL4V Titanium

Handle Finish Glass Blasted

Handle Thickness 0.15 inches

Hardware Blue Accent Hardware

Lock Type Reeve Integral Lock with Ceramic Ball Interface

Clip Position Tip-Up, Right Carry

Pocket Clip Stamped Titanium Clip

Configuration Single Thumb Lug, Stamped Clip, Black Lanyard

Product Reviews

Insingo on MagnaCut — The Slicing Sebenza

CPM MagnaCut at 63-64 HRC. Hollow grind Insingo profile — the blade geometry that serious cutters choose when slicing performance is the goal. Glass blasted 6AL4V titanium, blue hardware. DOB April 14, 2026. Made in Boise, Idaho USA.

CPM MagnaCut 63-64 HRC — Reeve Integral Lock

Crucible particle metallurgy at the top of production hardness. Reeve Integral Lock with ceramic ball interface — wear-free, zero blade play, lifetime of smooth consistent operation. 4.7 oz, tip-up right carry.

Authorized Dealer — CRK Lifetime Guarantee

Knifeworks is an authorized Chris Reeve Knives dealer. Every L31-1685-65 purchased here carries CRK’s lifetime guarantee against defects in materials and workmanship — buy with confidence.

Same or Next Business Day Shipping

In-stock orders ship from Columbia, Louisiana. Questions? Call 888-225-9775 — our team carries these knives daily.

Chris Reeve Large Sebenza 31 L31-1685-65: Frequently Asked Questions

Common questions about the Chris Reeve Large Sebenza 31 CPM MagnaCut Insingo with glass blasted titanium and blue hardware, answered by the Knifeworks team.

What is the Insingo blade profile, and why is it the best choice for slicing?

The Insingo is a blade profile defined by a curved spine that sweeps downward from the handle toward a refined, relatively fine tip — as opposed to a drop point where the spine descends from a straight run, or a tanto where the spine is level and the secondary edge creates the tip. The Insingo’s curved spine creates a belly-forward geometry where the full length of the curved primary edge is engaged through the cutting stroke, rather than concentrating force at the tip or heel. This makes the Insingo exceptionally effective for slicing tasks: food preparation, cutting webbing, breaking down cardboard, or any task where you want the edge to glide through material rather than penetrate it. Combined with CPM MagnaCut at 63-64 HRC and a hollow grind at 0.12” thin, the L31-1685-65 is the most cutting-optimized blade configuration available on the Large Sebenza 31 platform.

What is the Reeve Integral Lock with ceramic ball interface on the Sebenza 31?

The Reeve Integral Lock (RIL) is machined directly from the 6AL4V titanium handle frame as an integral component — not a separate liner inserted into the handle. It has been the standard for precision titanium frame locks in production folding knives since the original Sebenza was introduced in 1987. The ceramic ball interface is a CRK refinement: a ceramic ball is seated between the titanium lock bar and the steel blade tang at the lockup contact point. Because ceramic is significantly harder and smoother than titanium, the ceramic ball creates wear-free contact between the lock bar and blade tang over a lifetime of use — preventing the metal-on-metal wear that degrades conventional lock bars over time. The result is a lockup that remains consistent, zero-play, and smooth-operating through years of carry and heavy use.

Why does the Sebenza 31 L31-1685-65 use a glass blasted finish instead of standard sandblasting?

Glass blasting uses fine glass beads projected at high pressure against the titanium surface, while standard sandblasting uses silica or aluminum oxide grit. Glass beads are rounder and finer than sand particles, which means they impact the titanium surface with less aggressive abrasion — creating a smoother, more refined matte surface with a slightly higher sheen than standard sandblasting. On the Sebenza 31, glass blasted titanium provides a more premium feel in hand, better scratch resistance over the life of the knife, and a surface that pairs well with the precision machining CRK is known for. The grip texture is still excellent for secure carry and use — the glass blast just achieves it with more refinement.

How does the Large Sebenza 31 Insingo compare to the Sebenza 31 Tanto (L31-1510)?

Both the L31-1685-65 Insingo and the L31-1510 Tanto share the same Large Sebenza 31 platform: CPM MagnaCut at 63-64 HRC, 3.61” blade, hollow grind, stonewashed blade, glass blasted 6AL4V titanium handle, Reeve Integral Lock with ceramic ball interface, 4.7 oz, made in Boise Idaho. The differences are the blade profile and hardware color. The Insingo has a curved spine optimized for slicing with a fine tip; the Tanto has a reinforced angular tip optimized for penetration and hard use. The Insingo uses blue hardware; the Tanto uses silver hardware. The Insingo mounts tip-up; the Tanto mounts tip-down. Choose the Insingo for slicing performance; choose the Tanto for tip strength.

What does the blue hardware on the L31-1685-65 consist of, and is it durable?

The blue hardware on the L31-1685-65 refers to the pivot screw, standoffs, and hardware accents throughout the handle frame, anodized in blue. Titanium anodization is an electrolytic process that creates an oxide layer on the surface of the titanium that refracts light at blue wavelengths — the color is not a paint or coating but is built into the oxide layer of the titanium itself. This makes anodized titanium hardware significantly more durable than painted or plated hardware in terms of color retention through normal carry and use. The blue hardware on the L31-1685-65 is the configuration detail that distinguishes this knife visually from the standard silver-hardware Sebenza 31 variants.

What are the full specifications of the Chris Reeve Large Sebenza 31 L31-1685-65?

Blade length: 3.61 in. Blade thickness: 0.12 in. Overall open: 8.40 in. Closed length: 4.79 in. Handle thickness: 0.15 in. Weight: 4.7 oz. CPM MagnaCut, 63-64 HRC, hollow grind, Insingo, stonewashed, plain edge. Glass blasted 6AL4V titanium handle. Blue accent hardware. Reeve Integral Lock with ceramic ball interface. Single thumb lug. Stamped clip, tip-up right carry. Black lanyard included. DOB April 14, 2026. Made in Boise, Idaho USA. CRK lifetime guarantee. $550.00. Knifeworks ships same or next business day from Columbia, Louisiana — call 888-225-9775.

CPM MagnaCut 63-64 HRC · Hollow Grind Insingo · Stonewashed · Reeve Integral Lock Ceramic Ball · Glass Blasted 6AL4V · Blue Hardware · 4.7 oz · DOB 04/14/2026 · Made in USA · CRK Lifetime Guarantee · Authorized Dealer

CPM MagnaCut at 63-64 HRC. Hollow grind Insingo. Reeve Integral Lock with ceramic ball. Glass blasted 6AL4V titanium. Blue hardware. 4.7 oz. Made in Boise, Idaho. The Sebenza for buyers who cut.

Knifeworks is an authorized Chris Reeve Knives dealer. The Large Sebenza 31 L31-1685-65 ships same or next business day from Columbia, Louisiana, with CRK’s lifetime guarantee. Questions? Call 888-225-9775 — our team carries these knives daily.

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