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OKnife Otacle U1 Ultra Button Lock 2 38 Inch Zirconium Oxide Ceramic Black Oxide Blade Snowflake Blue Titanium Handle OKNU1ULTRASFB EAN 6977370470334
Product Description
The OKnife® Otacle U1 Ultra Folding Utility Knife (SKU: OKNU1ULTRASFB / EAN: 6977370470334) elevates the humble replaceable-blade box cutter into a boutique everyday carry (EDC) folding instrument. Engineered by Olight’s dedicated edged-tool division, the U1 Ultra pairs a custom-anodized Snowflake Blue TC4 titanium frame with a manual push-button plunge lock, an extended flipper tang, and dual thumb studs. Measuring a compact 3.38 inches closed and weighing just 2.89 ounces (82.0 grams), it delivers fidget-friendly, one-handed deployment and zero-play lockup for precision daily cutting tasks.
Unlike conventional carbon steel razor blades that dull rapidly and corrode in humid environments, the Otacle U1 Ultra comes pre-installed with a standard trapezoidal utility blade crafted from high-purity Zirconium Oxide (ZrO2) Ceramic sintered to an extraordinary hardness exceeding 1200 HV. Ground to a laser-sharp 11°–18° edge angle at a 0.024-inch (0.6 mm) thickness, this ceramic insert is chemically inert, non-conductive, completely rustproof, and holds its working edge up to ten times longer than standard SK5 steel blades when slicing abrasive cardboard, strapping, vinyl, and cordage. The ceramic insert is housed inside a rigid 2.38-inch stainless steel blade carrier treated with a non-reflective Black Oxide finish that resists wear and accepts standard off-the-shelf trapezoidal utility blades for instant field replacement.
The handle scales are CNC-machined from aerospace-grade TC4 (6AL-4V) Titanium and finished with a striking Snowflake Blue crystalline anodizing that gives every knife a distinctive icy metallic texture alongside lifetime corrosion immunity. Operators can deploy the blade effortlessly using either the dual ambidextrous thumb studs or the extended tang flipper tab, while the manual button lock allows safe, one-handed closing without placing fingers in the path of the razor edge. A titanium-coated stainless steel deep-carry pocket clip secures the knife in a right-hand, tip-up orientation for discreet, snag-free pocket retention.
*Bladesmith Bench Notes & Field Maintenance Guidance:*
Deployment, Carry & Ceramic Metallurgy Advisory: Manual Button-Lock Plunge Mechanism (Non-Automatic) with Extended Tang Flipper and Dual Thumb Studs, Black Oxide Stainless Blade Carrier, and Replaceable Zirconium Oxide Ceramic Trapezoidal Insert (1200+ HV). CRITICAL CERAMIC ADVISORY: Zirconium Oxide ceramic offers extreme edge retention and total rust immunity, but it is brittle under lateral torque. Never use the ceramic blade for prying, twisting, scraping staples, or striking hard metals. Replace or reverse the trapezoidal insert as soon as micro-chipping occurs, and maintain the Black Oxide carrier with a light wipe of protective oil.
- Verify the blade path is clear before deploying via the thumb studs or extended tang flipper; remember that the frame button is a manual plunge lock release and does not spring-fire the blade.
- To reverse or replace the trapezoidal utility insert, fully open and lock the Black Oxide blade holder, depress the blade-retention lock mechanism on the carrier while keeping fingers strictly behind the spine, and slide the ceramic blade straight out of the channel.
- Seat the fresh or reversed standard 60 mm trapezoidal blade (compatible with OKnife UB2C ceramic or standard SK5/D2 two-notch utility blades) into the Black Oxide carrier until the retention catch clicks positively into the top blade notch.
- Periodically blow compressed air through the button-lock well and pivot assembly to clear cardboard dust, applying a single micro-drop of low-viscosity synthetic pivot oil to the bearing track and wiping down the Black Oxide carrier to prevent surface oxidation.
- Confirm zero longitudinal slip on the installed utility blade and positive button-lock engagement before staging the knife in your pocket via the right-hand Tip-Up deep-carry pocket clip.
Key Features
- 1200+ HV Zirconium Oxide Ceramic Blade: Replaceable 0.6 mm standard trapezoidal ceramic razor insert delivers extreme wear resistance, non-magnetic and non-conductive safety, and 100% rust immunity.
- Black Oxide Universal Blade Holder: 2.38-inch corrosion-resistant Black Oxide stainless steel carrier features an extended flipper tang, dual thumb studs, and universal compatibility with standard trapezoidal utility blades.
- Snowflake Blue TC4 Titanium Handle: Ultra-thin CNC-machined Grade 5 titanium scales showcase a crystalline Snowflake Blue anodized finish that balances featherweight carry with rugged structural rigidity.
- Fidget-Friendly Button Lock & Dual Openers: Combines dual thumb studs and an extended flipper tang with a smooth manual push-button plunge lock for rapid, safe one-handed deployment and closure.
Product Specifications
- Brand: OKnife® (by Olight®)
- Model/Series: Otacle U1 Ultra
- MPN / SKU: OKNU1ULTRASFB / U1ULTRASFB
- UPC / EAN: 6977370470334
- Blade Holder Length: 2.38" (60.5 mm) / Ceramic Insert: 2.36" (59.9 mm)
- Blade Thickness: 0.024" (0.6 mm) Ceramic Insert
- Overall Length (OAL): 5.74" (145.8 mm)
- Closed / Handle Length: 3.38" (85.9 mm)
- Blade / Carrier Material: Zirconium Oxide Ceramic Insert (1200+ HV) / Stainless Steel Holder
- Blade Style / Grind: Standard Trapezoidal Utility Blade / Flat Micro-Bevel (11°–18°)
- Blade / Carrier Finish: White Brushed Ceramic Blade / Black Oxide Blade Holder
- Edge Type: Plain Edge (Replaceable / Reversible Utility Razor)
- Handle Material / Color: TC4 (6AL-4V) Titanium / Snowflake Blue Anodized
- Locking / Action Mechanism: Manual Push-Button Plunge Lock / Dual Thumb Studs & Extended Flipper Tang
- Pocket Clip / Sheath: Titanium-Coated Stainless Steel Deep-Carry Pocket Clip (Right-Hand, Tip-Up)
- Weight: 2.89 oz (82.0 g)
- Country of Origin: China
