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Swiss Schmidt-Rubin Straight-Pull Rifle Database

The N.Sutter Quercus NS01A Black is a premium folding pocket knife by N.Sutter, a Swiss-design knifemaker whose signature — "Knives of excellence" — sums up the ambition: exceptional materials, precise execution, refined and timeless style. Every N.Sutter knife carries a unique serial number that acts as the piece's identity card.

The Quercus NS01A combines a 95 mm D2 steel blade — known for its hardness, exceptional edge retention and wear resistance — with a textured black G10 front scale and a steel frame-lock side. The build runs on ceramic ball bearings for an ultra-fluid flipper deployment. 

The Quercus is aimed at shooters, professionals and demanding enthusiasts seeking a reliable, distinctive and stylish pocket knife, in a price range remarkably accessible for this level of quality craftsmanship. A daily companion capable of everyday cutting tasks as well as more technical outdoor, hunting, workshop or tactical uses.

• Type: Folding pocket knife (folder), locking blade
• Brand: N.Sutter — Swiss Design
• Model: Quercus NS01A Black
• Serial number: unique individual serial — engraved on each piece
• Blade steel: D2 (high-chromium, high-carbon semi-stainless — ~58–62 HRC, excellent edge retention)
• Blade length: ±95 mm
• Blade thickness: ±3.5 mm
• Blade shape: Drop point with moderate belly — versatile slicing and piercing
• Blade finish: Satin (contrasts with the black handle)
• Overall length (open): ±205 mm
• Lock type: Frame Lock (steel frame lock — the most robust folder locking system)
• Front handle scale: Textured black G10 (epoxy fiberglass — impervious to moisture, heat and impact)
• Frame lock side: Steel
• Bearings: Ceramic ball bearings — ultra-fluid deployment, corrosion and wear resistant
• Opening system: Flipper (index tab for fast one-handed opening)
• Weight: ±137 g
• Warranty: 2 years (manufacturer / Swiss distribution)
• Positioning: Swiss Design — excellent craftsmanship at accessible price

• Individual serial number: each Quercus NS01A carries its own serial number — traceability, authenticity and a strong collectible argument.
• High-performance D2 steel: one of the most respected knife steels for hardness / edge retention / price ratio — sharpens well, holds an edge long, superior abrasive wear resistance.
• Steel Frame Lock: the most robust and reliable locking system in folder knives — no blade play, firm lockup, one-handed closing.
• Ceramic ball bearings: ultra-fast, ultra-fluid flipper deployment, corrosion-immune, superior mechanical durability vs steel bearings.
• Textured G10 scale: excellent grip in all conditions (wet, greasy, gloved), impervious and impact-resistant material.
• Clean, professional design: refined aesthetic, timeless line — equally at home in professional and tactical environments.
• Balanced EDC format: 205 mm open / ~120 mm closed at 137 g — perfect compromise between cutting capacity and jean/tactical pocket portability.
• Discreet pocket clip: stable pocket carry without excessive visible protrusion.
• Accessible price positioning: high-end materials and craftsmanship (D2, G10, ceramic bearings, steel frame lock) at an exceptionally competitive price for this quality level.
• Swiss Design signature: Swiss touch in design and attention to detail — a distinctive, valued piece.

N.Sutter — a Swiss-design signature dedicated to accessible high-end pocket cutlery. The house claims a "Knives of excellence" approach: noble materials (D2 and similar steels, G10, ceramic), precise execution and attention to detail rooted in Swiss watchmaking tradition. Each knife receives an individual serial number that makes it unique and traceable. The Quercus line is one of the brand's EDC references.

• 1 N.Sutter Quercus NS01A Black knife with unique serial number
• 1 original N.Sutter box

• Wipe the blade after any wet use to prevent corrosion (D2 is semi-stainless, not fully stainless).
• Periodically oil the pivot with a fine cutlery oil (one drop).
• Sharpen with a fine ceramic stone (grit 1000/3000) or a guided system — recommended angle ~20° per side.
• Cleaning: microfiber cloth + fine oil. Avoid dishwashers and aggressive cleaners.