Pre-Order ——Ships by Sept. 7

The Tenable Leviathan B1083A4 draws inspiration from the mythical sea monster, combining raw strength with oceanic mystery. Designed by Warhawk Knives, this overbuilt EDC folder features a bold 3.9" blackwash D2 cleaver-style blade with aggressive presence. The brown Micarta handle provides secure grip and distinctive character, while dual deployment options—flipper tab and thumb hole—deliver flexibility for any user. With a liner lock ensuring reliable blade security and measuring 9.6" overall at 8.22 oz, the Leviathan balances substantial weight with practical everyday carry capability. Daniel Sparhawk's design philosophy shines through: rugged tactical aesthetics refined into versatile, durable functionality perfect for demanding tasks and daily use alike.

D2 Blade Introduction

SPECIFICATIONS

Overall Length	9.6"/243.9mm
Blade Length	3.9"/99.1mm
Blade Thickness	0.125''/3.2mm
Blade Material	BlackwashD2
Blade Style	Hawkbill
Blade Grind	Flat Grind
Blade Finish	Blackwash
Handle Material	Brown  Micarta
Color	Brown
Lock Type	Liner Lock
Weight	8.22oz/233g
Model Name	Leviathan
Model Number	B1083A4
Designer	Warhawk Knives

Tenable Leviathan B1083A4 — Overbuilt D2 Cleaver Folder by Warhawk Knives

Named for the mythical sea monster, the Leviathan B1083A4 is exactly what an "overbuilt" folder should be: a 3.9-inch blackwash D2 cleaver-style blade with mass behind every cut, wrapped in brown Micarta that gets grippier when wet and better looking every month you carry it. Warhawk Knives designer Daniel Sparhawk — a U.S. Army veteran and knifemaker since 2015 — gave it dual deployment with a flipper tab and thumb hole, and a liner lock that handles the big blade with confidence. At 9.6 inches overall and 8.22 ounces, this is not a minimalist's knife; it is a tool for guys who want their folding knives to have shoulders. Browse more Tenable Knives designs across our knives lineup.

D2 Steel & Hardware Selling Points

• D2 Tool Steel: High-carbon, high-chromium air-hardening steel at 58-61 HRC — famous for holding a working edge through cardboard, rope and wood far longer than budget stainless.
• Blackwash Cleaver-Style Blade: The aggressive sheepsfoot-cleaver profile puts a broad, slicing-friendly edge where you need it, with a finish that hides wear beautifully.
• Brown Micarta Handle: Layers of fabric or paper in resin that develop personal patina and grip harder in wet or bloody conditions than any metal handle.
• Dual Deployment: Flipper tab for fast action or thumb hole for a quieter, glove-friendly open — your choice.
• Liner Lock: Proven lock geometry with solid engagement for a blade this size.
• 0.125in / 3.2mm Blade Stock: Real thickness behind the edge — no flex when you bear down on a cut.

Core Selling Points

• 3.9in / 99.1mm blackwash D2 cleaver-style blade, flat grind
• D2 tool steel hardness 58-61 HRC for outstanding edge retention
• Brown Micarta handle — warm, grippy, ages into a personal patina
• Flipper tab + thumb hole dual deployment options
• Secure liner lock sized for the big blade
• 9.6in / 243.9mm overall, 8.22oz / 233g — genuinely overbuilt
• Warhawk Knives / Daniel Sparhawk designer pedigree
• Sub-$90 pricing for a designer big-blade folder

Best Use Scenarios

1. Heavy Cardboard & Packaging: The cleaver blade slices pallet-wrapped boxes all day without edge wipes.
2. Camp Kitchen Duty: Wide flat blade handles food prep, cheese, salami and vegetables like a mini kitchen cleaver.
3. Ranch & Outdoor Work: D2 edge retention shrugs off rope, feed bags and kindling splits.
4. Range & Gear Days: Big grip with gloves on; thumb hole opens without racking the flipper.
5. Collection Showcase: Sea-monster proportions and Micarta patina make it a display-worthy user.

FAQ — Tenable Leviathan B1083A4

Q1. Is D2 stainless?
A: Not technically. D2's high chromium content gives it partial corrosion resistance, but it can rust if neglected — wipe it down and oil it like a tool steel.

Q2. How hard is it to sharpen D2?
A: It is harder than budget steels because of its high wear resistance. A diamond stone or quality synthetic stone handles it fine; you also sharpen far less often.

Q3. Is 8.22oz too heavy for EDC?
A: For office carry, yes — this is a work and outdoor folder. For jeans, range days and camp duty, the mass is a feature, not a bug.

Q4. What is the difference between the Leviathan versions?
A: Same platform and size; the variants differ in blade finish (blackwash, stonewash, TiCn, Damascus) and handle material (Micarta, G10, G-mascus).

Q5. Can I open it with gloves on?
A: Yes — use the thumb hole for a glove-friendly open, or the flipper when bare-handed.

D2 Steel Comparison — Same-Price-Class Blade Steels

Steel	Typical HRC	Edge Retention	Corrosion Resistance	Toughness	Sharpening Ease
D2 (this knife)	58-61	Excellent	Weak (semi-stainless)	Moderate	Difficult
8Cr13MoV	57-59	Moderate	Good	Good	Very easy
AUS-8	57-59	Moderate	Good	Very good	Very easy
14C28N	58-60	Good	Excellent	Good	Easy
440C	58-60	Good	Good	Moderate	Moderate
1095 (carbon)	55-58	Moderate	Poor	Excellent	Very easy

Key Terminology

D2 Tool Steel
An air-hardening, high-carbon/high-chromium die steel — semi-stainless, extremely wear resistant, typically hardened to 58-61 HRC.

Cleaver-Style Blade
A broad, sheepsfoot-like blade profile inspired by kitchen cleavers — wide front edge, great slicing power, distinctive look.

Micarta
Layers of linen, canvas or paper compressed in resin — a classic handle material that grips better wet and develops character with age.

Blackwash Finish
A dark stonewash treatment that gives the blade a rugged, matte, wear-hiding surface.

Liner Lock
A locking liner inside the handle springs against the blade tang to hold it open — slim, proven, one-hand closable.

HRC (Rockwell Hardness)
The industry hardness scale for blade steel; most quality folding knife steels land between 57 and 62 HRC.

Who Should Buy / Who Should Skip

Who Should Buy:

• Guys who think folders have gotten too small and want a real handful
• Micarta fans who want a handle that patinas and grips when wet
• Campers and ranch users who need D2 edge retention on a budget
• Collectors following Warhawk Knives / Daniel Sparhawk designs
• Gift buyers shopping for a big, serious knife under $100

Who Should Skip:

• Minimalist office carriers — 8.22oz and 9.6in is not subtle
• Anyone unwilling to oil a semi-stainless blade after wet use
• Users who want a premium steel like S35VN or 20CV at this size (expect to pay 2-3x)
• People in areas with blade-length restrictions over 3.5 inches

Care & Maintenance

1. Wipe D2 dry after every wet task; oil the blade lightly with mineral or knife oil.
2. Sharpen with diamond stones around 600-1000 grit — D2 rewards patience with long edge life.
3. Keep food and moisture out of the liner lock channel; blow it clean periodically.
4. Drop a small amount of oil on the pivot every couple of months for smooth flipper action.
5. Micarta needs no conditioning — but washing with mild soap keeps it from staining.
6. Tighten body and clip screws occasionally; big blades work screws loose.
7. Do not pry or twist with the tip; cleaver blades are slicers and choppers of soft material only.
8. Store dry and oiled; avoid leather sheaths for long-term storage (they hold moisture).
9. Check the lock engagement after hard cuts — solid halfway or more lockup is normal.

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