Trivisa Scarab Ultra-SD JM09-S-DZ ZDP-189 Damascus Blade Titanium Handle Crossbar Lock Folding Knife

The Trivisa Scarab Ultra-SD JM09-S-DZ combines a ZDP-189 Damascus blade with a titanium handle in a compact folding design suited to everyday carry and outdoor activities. Its 2.99-inch acid-etched blade features a distinctive layered pattern, while the crossbar lock secures it in the open position. Ceramic ball bearings support smooth manual opening. Measuring 6.79 inches overall and 3.8 inches closed, the knife weighs just 2.36 ounces for convenient carry. The blade is 2.2 mm thick and has a stated hardness of 65–67 HRC. Designed by the TRIVISA Team, this lightweight folder is suitable for hiking, camping, fishing, hunting, and general EDC use. Dry and oil the blade regularly to help protect its finish and maintain its condition.

Damascus Blade Introduction

Damascus steel is renowned for its distinctive wavy patterns and exceptional combination of strength and flexibility, offering superior edge retention and resilience against chipping. However, its layered structure renders it prone to corrosion if not meticulously maintained, and variations in modern forge-welding quality can lead to inconsistent performance. Regular oiling and careful drying are essential to preserve both its aesthetic allure and functional integrity.

ZDP-189 Blade Introduction

ZDP-189 is a high-carbon, high-chromium powder metallurgy steel renowned for its extreme hardness, often exceeding 64 HRC, which delivers peerless edge retention and aggressive cutting performance. This performance comes at a cost; its massive carbide volume makes the steel notoriously difficult to sharpen and increases brittleness, posing a risk of chipping under heavy lateral impact. Furthermore, while technically stainless, its high carbon content necessitates diligent maintenance to prevent oxidation, making it a specialized choice for precision cutting tasks rather than rough, heavy-duty utility.

Specification

Designer:TRIVISA Team
Style:Swedge
Blade Material: ZDP-189 Damascus Steel Blade
Blade Finished: Acid Etched Finished
Handle Material:Titanium Handle
Lock Style:Crossbar Lock
Hardness:65-67HRC
Bearing:Ceramic Ball Bearing

Size:
Overall length-6.79"(172.4mm)
Blade length-2.99"(76mm)
Closed length-3.8"(96.4mm)
Blade width-1''(25.7mm)
Blade thickness-0.08''(2.2mm)
Net Weight:2.36oz(66.8g)

Usage:Outdoor survival,EDC,hunting,fishing, hiking and camping

Trivisa Scarab Ultra-SD - Acid Etched ZDP-189 Damascus Swedge Blade in an Anodized Titanium Frame

The ZDP-189 Damascus swedge blade on the Trivisa Scarab Ultra-SD is finished in acid etched, riding on a bronze anodized titanium handle with a crossbar lock and ceramic bearings at 66.8 g (2.36 oz). More folding knives and EDC gear at EDCMALL.

ZDP-189 Damascus: Patterned Steel With a 65-67 HRC Core

Every one of these blades carries a one-of-a-kind pattern: forge-welded Damascus cladding acid etched to reveal wavy layers, wrapped around a ZDP-189 core hardened to 65-67 HRC. You get the extreme edge retention of a 3-percent-carbon powder steel plus patterned steel that no two owners share. The honest trade: keep the etched flats wiped and lightly oiled so the contrast stays sharp, expect diamond abrasives at sharpening time, and keep prying loads off the 2.2 mm swedge blade. At 66.8 g on an anodized titanium frame it disappears in the pocket. Compare ZDP-189 Damascus with Damascus folders, M390 and CPM-S35VN in the table below.

Why the Trivisa Scarab Belongs in Your Pocket

• 2.99 inch ZDP-189 Damascus swedge blade at 65-67 HRC on 2.2 mm stock.
• Acid Etched blade finish - an acid-etched satin finish that reveals the layered Damascus pattern blade to blade.
• Bronze Anodized Titanium with a satin-machined, anodized finish.
• Anodized thumb stud for fast, one-handed opening.
• Crossbar lock: ambidextrous, dirt-tolerant and finger-safe on closing.
• Ceramic ball bearing pivot that stays glassy for years.
• Steel pocket clip, tip-up, and a lanyard-ready rear.
• 66.8 g (2.36 oz) on a 6.79 inch frame - premium steel without pocket drag.

Best Uses for the Scarab Ultra-SD

• Daily pocket duty: mail, packaging, tags and food prep on a 2.99 inch swedge blade.
• Office and urban carry where the anodized titanium frame reads as jewellery-grade finish.
• Weekend hiking and camping where a compact, corrosion-resistant folder earns its pocket spot.
• Collection display for the ZDP-189 Damascus pedigree and the layered or polished finish.
• Precision slicing where the swedged tip geometry and fine edge excel.

Frequently Asked Questions

What steel is the Scarab blade?
ZDP-189 Damascus - hardened to 65-67 HRC. It delivers exceptional edge retention, but it is brittle under prying and sharpening wants diamond abrasives; wipe the blade dry and oil it lightly.

How does the knife open and lock?
Press the anodized thumb stud and the ceramic ball bearing pivot swings the blade out one-handed; the crossbar lock wedges behind the tang from above and is fully ambidextrous and finger-safe on closing.

What is the handle made of?
Bronze Anodized Titanium - aerospace-grade scales coloured by a surface oxide layer, not paint, with a machined satin finish and a steel pocket clip.

How big is it?
6.79" (172.4 mm) open, 3.8" (96.4 mm) closed, 2.99" (76 mm) blade at 0.08" (2.2 mm), and 66.8 g (2.36 oz) - a compact titanium folder that disappears in the pocket.

Is the Damascus pattern the same on every blade?
No - on the Damascus variants the acid-etched layer pattern varies blade to blade, so the knife you receive is visually one of a kind.

ZDP-189 Damascus vs. Common Pocket Knife Steels

Steel	Typical HRC	Edge Retention	Corrosion Resistance	Toughness	Sharpening Ease
ZDP-189 Damascus (this blade)	64-67	Excellent	Fair	Fair	Hard
Bohler M390	60-62	Excellent	Excellent	Fair	Hard
VG-10 Damascus	60-62	Very Good	Fair	Fair	Moderate
D2 Tool Steel	58-61	Very Good	Fair	Good	Moderate
14C28N	58-61	Good	Excellent	Good	Very Easy

This blade pairs a ZDP-189 core at 65-67 HRC - one of the hardest production blade steels made - with forge-welded Damascus cladding that shows the layered wavy pattern across the flats. You get the edge retention of a 3-percent-carbon powder steel plus a one-of-a-kind pattern on every blade. The honest trade: the clad pattern steel needs wiping and a light oil film to keep its contrast, the hard core can chip under prying, and sharpening demands diamond abrasives. HRC figures are typical mill ranges, not a guarantee for any single blade.

Glossary of Key Terms

Trivisa
A Chinese knife brand building anodized-titanium folders around premium steels, with a clean in-house design language.

Scarab
Trivisa's compact swedge-blade folder: a 2.99 inch blade, 6.79 inches open, anodized titanium handle, crossbar lock, ceramic bearings, 66.8 g.

Damascus Steel
Steel folded or forge-welded in layers, then acid etched so the layers show as wavy lines. Modern production Damascus combines looks with a real cutting core.

ZDP-189 Steel
Hitachi's extreme high-carbon powder steel - about 3 percent carbon and hardened to 64-67 HRC. Peerless edge retention; sharpen with diamond abrasives and keep prying loads off the tip.

Sandwich Steel
A hardened cutting core forge-welded or clad between layers of softer stainless steel. The edge stays hard; the cladding protects and adds toughness.

Acid Etching
A controlled acid bath that darkens the steel and reveals the layered Damascus pattern. The etched surface hides carry scratches well.

Swedge
A bevel ground along the blade spine. It lightens the profile, sharpens the tip's geometry and adds a distinctive silhouette.

Crossbar Lock
A spring-loaded bar spanning the handle that wedges behind the blade tang. Fully ambidextrous, keeps fingers out of the closing path, and among the strongest folder locks built.

Ceramic Ball Bearings
Hardened ceramic balls around the pivot. The action stays glassy for years, and ceramic will not rust or flat-spot.

Titanium Handle
Aerospace-grade Ti-6Al-4V scales: stronger than steel by weight, immune to corrosion, and warm-feeling in cold weather.

Anodized Titanium
Titanium colour produced by heat or voltage, forming a surface oxide layer. It is not paint - it will not chip or peel.

65-67 HRC
The Rockwell C hardness band this blade is heat treated to - harder than nearly every production folder. Outstanding edge life; sharpen with diamond abrasives and do not pry.

Pocket Clip
A spring steel strip that holds the folded knife at the top of your pocket, tip-up on this model.

Who Should Buy the Scarab Ultra-SD

• Buyers who want ZDP-189 Damascus performance in a sub-3-ounce titanium folder.
• Anyone who values an ambidextrous crossbar lock over flipper tactics.
• Collectors chasing the colour-coded Scarab lineup (grey, bronze, black frames).
• Wet-climate carriers who want a folder that shrugs off sweat and rain.
• Minimalists who like a clean swedge profile and a compact 3.8 inch closed length.

Who Should Skip It

• Budget-first buyers - a 14C28N folder at a third of the price cuts cardboard just as well.
• Anyone who wants a fidget-style flipper or button action; this opens on a thumb stud.
• Pry-prone users - the 65-67 HRC core is a slicer, not a lever.
• Users who need a heavy-duty work blade; 2.2 mm stock is built for slicing, not leverage.

Care & Maintenance

• Wipe the blade dry after every use and apply a light film of oil to the patterned flats; the Damascus cladding keeps its contrast only when kept clean and oiled.
• One drop of light knife oil at the pivot every two months, then cycle the blade so oil reaches the ceramic bearing.
• Sharpen on a diamond plate at 15-18 degrees per side; the 65-67 HRC ZDP-189 core outlasts ordinary stones.
• Do not grind the pattern away - sharpen at the existing edge bevel angle and finish the apex on a loaded strop.
• Never pry, twist or baton with the tip; the hard core is a slicer and will chip under lateral load.
• Wipe anodized titanium scales with a dry microfibre cloth; the colour is a surface oxide, so keep solvents off it.
• Blow lint out of the crossbar-lock channel before oiling; grit under the lock bar makes the action gritty.
• Check the body and clip screws every few months with the correct Torx driver.
• Store it closed and dry; a sealed damp pouch is the fastest way to spot the cladding.