Tenable Bömbur T1054A5 D2 Blade Micarta Handle Liner Lock Folding Knife

The Tenable Bömbur T1054A5 is a robust folding knife designed for demanding everyday and outdoor cutting tasks. Its blue Micarta handle offers a distinctive look and a contoured grip for comfortable control. The stonewashed D2 tool-steel drop-point blade combines a long straight edge with a curved belly, supporting both controlled cuts and slicing. A flat grind and blade jimping add practical utility, while the triangular opening and fuller contribute to its bold design. A liner lock secures the blade open during use. Measuring 8.38 inches overall, with a 3.53-inch blade and 5.0-mm thickness, it weighs 7.55 ounces. D2 is wear-resistant and holds an edge well, but is not stainless; clean and dry it after use to help prevent corrosion.

D2 Blade Introduction

SPECIFICATIONS

Overall Length	8.38''/212.8mm
Blade Length	3.53''/89.7mm
Blade Thickness	0.196''/5.0mm
Blade Material	Stonewashed D2
Blade Style	Drop Point
Blade Grind	Flat Grind
Blade Finish	Stonewashed
Handle Material	Blue Micarta
Color	Blue
Lock Type	Liner Lock
Weight	7.55oz/214g
Model Name	Bömbur
Model Number	T1054A4
Designer	Midgard Messer

Tenable BomBur T1054A5 - D2 Drop Point Liner Lock with a Blue Micarta Handle

The Tenable BomBur T1054A5, designed with Midgard Messer, is a heavy-duty folder: 3.53 inch D2 drop point on 5.0 mm stock, blue Micarta scales, titanium backspacer and clip, and a steel liner lock at 214 g (7.55 oz). More folding knives at EDCMALL.

D2 on 5.0 mm Stock: a Working Blade With a Spine Behind It

Most D2 folders run 3.5 mm blade stock. The BomBur runs 5.0 mm, and that difference is the whole character of the knife: the milled fuller strips away the extra weight while the spine keeps the stiffness for levered cuts through hardwood, plastic and packaging that would flex a thinner blade. The stonewashed finish kills glare and hides carry marks, and the triangular opening gives your thumb purchase without a flipper tab to snag. Compare it with 14C28N, Nitro-V and CPM-MagnaCut in the table below.

Why the Tenable BomBur Belongs in Your Pocket

• 3.53 inch D2 drop point at 58-61 HRC with a full flat grind.
• Stonewashed finish that kills glare and hides carry scratches.
• Contoured blue Micarta scales with an ergonomic, palm-filling grip.
• Titanium backspacer and titanium pocket clip for premium hardware feel.
• Milled fuller along the blade flat - weight saved, stiffness kept.
• Triangular blade opening with jimping for a confident thumb purchase.
• Steel liner lock with solid, early lockup.
• 214 g (7.55 oz) on an 8.38 inch frame - a full-size, planted working folder.

Best Uses for the BomBur T1054A5

• Job-site work: cardboard, strapping, lumber marking and packaging.
• Camp chores on a thick blade - kindling, food packs and cordage.
• Belt-pouch and truck carry as the do-everything heavy folder.
• Outdoor and hunting utility where a straight drop point earns its keep.
• Collector display for the Midgard Messer industrial design language.

Frequently Asked Questions

What steel is the BomBur T1054A5 blade?
D2 tool steel at 58-61 HRC, flat ground with a milled fuller. D2 is stain resistant rather than stainless - superb wear resistance for the money, but wipe it dry and oil it every month or two.

Who designed the BomBur?
The BomBur was designed with Midgard Messer, whose angular, mechanically styled folders are known for exposed detailing and functional geometry. The triangular opening and fuller are signature elements.

How thick is the blade?
5.0 mm (0.196 inch) - significantly thicker than most 3.5 inch folders. That is why the knife weighs 214 g (7.55 oz) and why the fuller is there.

How big is the BomBur?
Open it is 8.38" (212.8 mm), the blade is 3.53" (89.7 mm) at 0.196" (5.0 mm), and it weighs 214 g (7.55 oz) - a full-size folder that wants a belt pouch or back pocket.

What are the handles made of?
Blue Micarta scales over steel liners, with a titanium backspacer and titanium pocket clip. Micarta grips better as it ages.

D2 Tool Steel vs. Common Folding Knife Steels

Steel	Typical HRC	Edge Retention	Corrosion Resistance	Toughness	Sharpening Ease
D2 (this knife)	58-61	Very Good	Fair	Good	Moderate
14C28N	58-61	Good	Excellent	Good	Very Easy
Nitro-V	59-61	Good	Very Good	Better	Easy
154CM	58-61	Good	Good	Very Good	Moderate
CPM-S35VN	59-61	Very Good	Very Good	Good	Moderate
8Cr13MoV	57-59	Fair	Good	Good	Very Easy

D2 is a high-carbon, high-chromium tool steel rather than a true stainless: about 1.5 percent carbon against 12 percent chromium. On the BomBur's 5.0 mm blade stock that carbide load is the whole point - the apex keeps cutting rope, strapping and hardwood long after a budget stainless would have rolled over, and the thick spine behind it absorbs the lateral loads a thin blade cannot. The trade is maintenance: D2 is stain resistant, not stainless, so wipe it dry and oil it, and sharpen on diamond because the coarse carbides skate on a soft aluminium-oxide stone. HRC figures are typical mill ranges, not a guarantee for any single blade.

Glossary of Key Terms

Tenable Knives
A US knife brand working with independent designers to deliver mid-to-premium production folders, fixed blades and Machined builds.

BomBur
Tenable's heavy-duty D2 folder designed with Midgard Messer: a 3.53 inch drop point on 5.0 mm stock, Micarta scales, titanium hardware and a steel liner lock at 214 g.

Midgard Messer
The design studio behind the BomBur, known for angular, mechanically styled knife geometry with exposed fasteners and functional detailing.

D2 Tool Steel
A high-carbon, high-chromium semi-stainless tool steel at 58-61 HRC. Outstanding wear resistance for the money; wipe it dry and oil it occasionally.

Blackwash Finish
A dark stonewashed coating that reads black in low light and grey at the wear points. It hides scratches better than any satin finish.

Micarta
Layers of linen or canvas cloth pressed into phenolic resin under heat. It absorbs sweat and skin oil, so grip improves with age instead of going slick.

Titanium Backspacer
The spacer between the handle liners, machined from titanium instead of steel or G10. It cuts weight where it matters and adds a premium feel.

Fuller
A groove milled along the blade flat. It removes weight without costing stiffness and gives the blade its distinctive mechanical look.

Triangular Opening
An angular cut-out in the blade near the spine that gives the thumb purchase for one-handed opening.

Liner Lock
A strip of spring steel inside the handle that snaps sideways behind the blade tang when the blade opens. One thumb of the closing hand releases it.

5.0 mm Blade Stock
The thickness of the blade. A heavyweight spine that takes hard utility work without flexing - and the reason the BomBur weighs 214 g.

8.38 Inch Overall
The open length that sets your reach. At 8.38 inches the BomBur is a full-size folder - back pocket, belt pouch or tool bag.

Who Should Buy the BomBur T1054A5

• Buyers who want D2 edge retention on heavyweight 5.0 mm blade stock.
• Fans of Midgard Messer's angular industrial design language.
• Tradespeople and site workers who want a planted, heavy folder.
• Collectors who want titanium backspacer and clip hardware under $80.
• Anyone who prefers Micarta scales that grip better with age.

Who Should Skip It

• Anyone who wants a light folder - 214 g is a deliberate heavyweight.
• Users who will not oil a blade; D2 spots if pocketed wet.
• Buyers who need a sub-3-inch blade for strict local carry rules.
• People who want a flipper tab; the BomBur opens by thumb only.
• Anyone who wants a premium super steel; look at MagnaCut folders instead.

Care & Maintenance

• Wipe the blade dry after every use; D2 is stain resistant, not stainless, and a 5.0 mm slab of it holds plenty of surface for rust to start.
• One drop of light knife oil on the blade and at the pivot every four to eight weeks, then cycle the action to spread it.
• Blow lint and grit out of the handle channel and the liner lock track before oiling; grit behind the lock bar makes a smooth action feel gritty.
• Sharpen on a diamond plate; D2's coarse carbides will glaze a soft aluminium-oxide stone in a few passes.
• Work the edge in full-length strokes from heel to tip at 17-20 degrees per side - rocking on a stone rounds the tip and lifts the heel.
• Finish on a fine ceramic rod or a loaded strop with light pressure, then test on paper before going back to the stone.
• Scrub the Micarta scales with warm water, mild soap and a soft brush; Micarta darkens with use, which is patina, not damage.
• Wipe the titanium backspacer and clip with a dry cloth; check the pivot and body screws monthly with the correct Torx driver.
• Never pry, twist or use the tip as a screwdriver - the heavy blade stock transmits more leverage to the liner lock than it is built to take.