Herman Knives Mantis M398 Nebula Ripple Titanium Folding Knife

$1,920.00
In stock — ships in 1–2 business days
Item №: 1988 · One-of-a-kind piece, 1 available
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    SPECIFICATIONS
    • Brand: Herman Knives
    • Model: Mantis
    • Version: Right-handed
    • Blade steel: Böhler M398 powder stainless steel
    • Blade hardness: 62–63 HRC
    • Heat treatment: Deep cryogenic treatment with liquid nitrogen
    • Blade thickness: 0.1457 in (3.7 mm)
    • Blade grind: Flat grind
    • Blade finish: Stonewash
    • Detent: Medium
    • Overall length: 8.66 in (220 mm)
    • Blade length: 3.70 in (94 mm)
    • Blade width: 1.10 in (28 mm)
    • Folded length: 4.88 in (124 mm)
    • Weight: 4.87 oz (138 g)
    • Handle: Grade 5 titanium
    • Handle pattern: Nebula Ripple, deeply engraved
    • Inlay: None
    • Pocket clip: Grade 5 titanium, deeply engraved Nebula Ripple pattern
    • Backspacer: Grade 5 titanium
    • Lock component: Grade 5 titanium
    • Pivot: Polished 440C stainless steel
    • Pivot hardness: 56–58 HRC, vacuum hardened
    • Pivot drive: TORX T20
    • Pivot construction: Herman-designed and manufactured in-house with increased thread diameter and reduced thread pitch for precise adjustment
    • Screws: Polished vacuum-hardened 440C stainless steel
    • Bearing system: Custom Herman Knives ceramic caged ball bearings
    • Bearing configuration: 16 ceramic balls in a stabilized cage
    • Bearing washers: M390 powder metallurgy steel
    • Washer inner diameter: 0.199 in (5.05 mm)
    • Washer outer diameter: 0.470 in (11.95 mm)
    • Washer thickness: 0.024 in (0.6 mm)
    • Washer heat treatment: Vacuum heat treated to 60 HRC
    • Washer production: M390 stock is machined and pre-drilled in-house on a Citizen Cincom A20 Swiss-type lathe
    • Washer heat-treatment stock length: 0.984 in (25 mm)
    • EDM processing: Inner-hole machining and wire cutting performed on a Mitsubishi MV1200R wire EDM machine
    • Washer finishing: Final manual lapping up to 4000 grit for an almost mirror-like bearing surface
    • Detent ball: Ceramic
    • Lock insert: Tungsten carbide
    • Stop pin: Tungsten carbide
    • Production: Bearing washers, pivot, and related precision components are produced in-house by Herman Knives
    • Included accessories: Original Herman Knives box, microfiber cloth, Pruciak Protector Glide for Herman oil, and dedicated titanium screwdriver manufactured by Herman Knives
    CRAFTSMANSHIP & DETAILS

    The Herman Knives Mantis M398 Nebula Ripple pairs a 3.70-inch Böhler M398 blade with a deeply engraved Grade 5 titanium handle. The flat-ground blade is hardened to 62–63 HRC with deep cryogenic treatment and finished in stonewash, while the flowing Nebula Ripple pattern continues across the titanium pocket clip for a cohesive high-contrast design.

    Herman’s upgraded action uses custom caged bearings with 16 ceramic balls running on M390 steel washers finished to 4000 grit. A ceramic detent, tungsten carbide lock insert and stop pin, polished 440C pivot and screws, and titanium backspacer complete the construction. The set includes the original box, microfiber cloth, Protector Glide oil, and titanium screwdriver.

    PACKAGE CONTENTS: Certificate of authenticity, white cotton gloves, protective packaging.


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    IN THE BOX

    • Certificate of authenticity
    • White cotton gloves
    • Gift box
    Herman Knives Mantis M398 Nebula Ripple Titanium Folding Knife
    • Brand: Herman Knives
    • Model: Mantis
    • Version: Right-handed
    • Blade steel: Böhler M398 powder stainless steel
    • Blade hardness: 62–63 HRC
    • Heat treatment: Deep cryogenic treatment with liquid nitrogen
    • Blade thickness: 0.1457 in (3.7 mm)
    • Blade grind: Flat grind
    • Blade finish: Stonewash
    • Detent: Medium
    • Overall length: 8.66 in (220 mm)
    • Blade length: 3.70 in (94 mm)
    • Blade width: 1.10 in (28 mm)
    • Folded length: 4.88 in (124 mm)
    • Weight: 4.87 oz (138 g)
    • Handle: Grade 5 titanium
    • Handle pattern: Nebula Ripple, deeply engraved
    • Inlay: None
    • Pocket clip: Grade 5 titanium, deeply engraved Nebula Ripple pattern
    • Backspacer: Grade 5 titanium
    • Lock component: Grade 5 titanium
    • Pivot: Polished 440C stainless steel
    • Pivot hardness: 56–58 HRC, vacuum hardened
    • Pivot drive: TORX T20
    • Pivot construction: Herman-designed and manufactured in-house with increased thread diameter and reduced thread pitch for precise adjustment
    • Screws: Polished vacuum-hardened 440C stainless steel
    • Bearing system: Custom Herman Knives ceramic caged ball bearings
    • Bearing configuration: 16 ceramic balls in a stabilized cage
    • Bearing washers: M390 powder metallurgy steel
    • Washer inner diameter: 0.199 in (5.05 mm)
    • Washer outer diameter: 0.470 in (11.95 mm)
    • Washer thickness: 0.024 in (0.6 mm)
    • Washer heat treatment: Vacuum heat treated to 60 HRC
    • Washer production: M390 stock is machined and pre-drilled in-house on a Citizen Cincom A20 Swiss-type lathe
    • Washer heat-treatment stock length: 0.984 in (25 mm)
    • EDM processing: Inner-hole machining and wire cutting performed on a Mitsubishi MV1200R wire EDM machine
    • Washer finishing: Final manual lapping up to 4000 grit for an almost mirror-like bearing surface
    • Detent ball: Ceramic
    • Lock insert: Tungsten carbide
    • Stop pin: Tungsten carbide
    • Production: Bearing washers, pivot, and related precision components are produced in-house by Herman Knives
    • Included accessories: Original Herman Knives box, microfiber cloth, Pruciak Protector Glide for Herman oil, and dedicated titanium screwdriver manufactured by Herman Knives

    The Herman Knives Mantis M398 Nebula Ripple pairs a 3.70-inch Böhler M398 blade with a deeply engraved Grade 5 titanium handle. The flat-ground blade is hardened to 62–63 HRC with deep cryogenic treatment and finished in stonewash, while the flowing Nebula Ripple pattern continues across the titanium pocket clip for a cohesive high-contrast design.

    Herman’s upgraded action uses custom caged bearings with 16 ceramic balls running on M390 steel washers finished to 4000 grit. A ceramic detent, tungsten carbide lock insert and stop pin, polished 440C pivot and screws, and titanium backspacer complete the construction. The set includes the original box, microfiber cloth, Protector Glide oil, and titanium screwdriver.

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