Herman Ishtar Damasteel Björkmans Twist Puzzle Folding Knife

$3,950.00
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Item №: 1962
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    SPECIFICATIONS
    • Maker: Herman Knives
    • Model: Ishtar
    • Configuration: Right-handed
    • Style: Half dress
    • Opening mechanism: Rear flipper
    • Lock: Grade 5 titanium liner lock
    • Blade steel: Damasteel Björkmans Twist™ powder stainless Damascus steel
    • Blade hardness: 61 HRC
    • Heat treatment: Deep cryogenic treatment in liquid nitrogen
    • Blade shape: Persian
    • Blade grind: Flat grind
    • Blade finish: Mirror polished
    • Blade length: 3.74 in (95 mm)
    • Blade thickness: 0.130 in (3.3 mm)
    • Blade width: 1.06 in (27 mm)
    • Overall length: 8.58 in (218 mm)
    • Closed length: 4.84 in (123 mm)
    • Weight: 4.37 oz (124 g)
    • Detent: Medium
    • Handle: Grade 5 titanium
    • Handle pattern: Multicolor Puzzle pattern
    • Inlay: None
    • Pocket clip: Hammered Grade 5 titanium
    • Backspacer: Hammered Grade 5 titanium
    • Pivot: Custom polished 440C stainless steel pivot with TORX T20 interface
    • Pivot hardness: 56–58 HRC
    • Screws: Polished, vacuum-hardened 440C stainless steel
    • Bearing system: Herman Knives custom caged bearing system with 16 ceramic balls
    • Bearing washers: M390 powder metallurgy steel, vacuum-hardened to 60 HRC
    • Washer dimensions: 0.199 in ID × 0.470 in OD × 0.024 in thick (5.05 × 11.95 × 0.6 mm)
    • Washer production: Machined in-house, wire-EDM cut, and manually lapped to a 4000-grit finish
    • Detent ball: Ceramic
    • Lock insert: Tungsten carbide
    • Stop pin: Tungsten carbide
    • In-house components: Pivot, screws, bearing components, and M390 washers produced by Herman Knives
    • Included accessories: Original Herman presentation box, certificate of authenticity, microfiber cloth, Pruciak Protector Glide oil, and dedicated titanium screwdriver
    CRAFTSMANSHIP & DETAILS

    The Herman Ishtar Puzzle Half Dress pairs a 3.74-inch Damasteel Björkmans Twist blade with the model’s sweeping Persian profile. The flat-ground blade is mirror polished to emphasize its layered pattern, while the Grade 5 titanium handle features a multicolor Puzzle design with contrasting textured details.

    A rear flipper operates Herman’s updated 16-ball ceramic bearing system with hardened, hand-lapped M390 washers. The titanium liner lock uses a tungsten carbide insert, ceramic detent, and tungsten carbide stop pin. Hammered Grade 5 titanium is used for the pocket clip and backspacer. The complete set includes the Herman presentation box, certificate, microfiber cloth, maintenance 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 Ishtar Damasteel Björkmans Twist Puzzle Folding Knife
    • Maker: Herman Knives
    • Model: Ishtar
    • Configuration: Right-handed
    • Style: Half dress
    • Opening mechanism: Rear flipper
    • Lock: Grade 5 titanium liner lock
    • Blade steel: Damasteel Björkmans Twist™ powder stainless Damascus steel
    • Blade hardness: 61 HRC
    • Heat treatment: Deep cryogenic treatment in liquid nitrogen
    • Blade shape: Persian
    • Blade grind: Flat grind
    • Blade finish: Mirror polished
    • Blade length: 3.74 in (95 mm)
    • Blade thickness: 0.130 in (3.3 mm)
    • Blade width: 1.06 in (27 mm)
    • Overall length: 8.58 in (218 mm)
    • Closed length: 4.84 in (123 mm)
    • Weight: 4.37 oz (124 g)
    • Detent: Medium
    • Handle: Grade 5 titanium
    • Handle pattern: Multicolor Puzzle pattern
    • Inlay: None
    • Pocket clip: Hammered Grade 5 titanium
    • Backspacer: Hammered Grade 5 titanium
    • Pivot: Custom polished 440C stainless steel pivot with TORX T20 interface
    • Pivot hardness: 56–58 HRC
    • Screws: Polished, vacuum-hardened 440C stainless steel
    • Bearing system: Herman Knives custom caged bearing system with 16 ceramic balls
    • Bearing washers: M390 powder metallurgy steel, vacuum-hardened to 60 HRC
    • Washer dimensions: 0.199 in ID × 0.470 in OD × 0.024 in thick (5.05 × 11.95 × 0.6 mm)
    • Washer production: Machined in-house, wire-EDM cut, and manually lapped to a 4000-grit finish
    • Detent ball: Ceramic
    • Lock insert: Tungsten carbide
    • Stop pin: Tungsten carbide
    • In-house components: Pivot, screws, bearing components, and M390 washers produced by Herman Knives
    • Included accessories: Original Herman presentation box, certificate of authenticity, microfiber cloth, Pruciak Protector Glide oil, and dedicated titanium screwdriver

    The Herman Ishtar Puzzle Half Dress pairs a 3.74-inch Damasteel Björkmans Twist blade with the model’s sweeping Persian profile. The flat-ground blade is mirror polished to emphasize its layered pattern, while the Grade 5 titanium handle features a multicolor Puzzle design with contrasting textured details.

    A rear flipper operates Herman’s updated 16-ball ceramic bearing system with hardened, hand-lapped M390 washers. The titanium liner lock uses a tungsten carbide insert, ceramic detent, and tungsten carbide stop pin. Hammered Grade 5 titanium is used for the pocket clip and backspacer. The complete set includes the Herman presentation box, certificate, microfiber cloth, maintenance oil, and titanium screwdriver.

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