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Large Selection of Unique Knives, Hand Forged Axes & Outdoor Gear Since 2012
Large Selection of Knives, Forged Axes & Outdoor Gear

Curtiss F3 Large Spanto Flipper MagnaCut Stonewash SPM-Mill Two Tone Torched (USA)

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Original price $695.00 - Original price $695.00
Original price
$695.00 - $695.00
Current price $695.00

The Curtiss Knives F3 Series was meticulously developed to address the demand for a robust, high-quality, American-made folding knife. This custom F3 Large model is crafted using superior MagnaCut steel, caged bearings, and the innovative, patented S.P.O.T. Pivot system exclusive to Curtiss Knives. The non-adjustable system ensures rapid, fluid action and secure lockup, while effectively preventing debris-related issues.

The thumb ramp's jimping is carefully milled for functionality without sacrificing comfort, reflecting the thoughtful attention to detail you will come to appreciate as an owner of this exceptional knife. The handle frames and matching backspacer showcase a refined, blasted, and dark stonewashed finish. The design seamlessly integrates multiple essential components of a premium flipper, resulting in a cleaner and more streamlined appearance.

In recognition of our unwavering commitment to quality, the F3 Large is backed by a full lifetime warranty. Experience the outstanding craftsmanship and superior materials of the Curtiss Knives F3 Series for yourself.

*** This custom knife is unique and brand new. The knife pictures you are viewing is the actual blade you will be receiving ***



  • Full titanium frame lock. Each titanium slab is 0.16" thick.
  • S.P.O.T. pivot system. Stop pin overtravel. This pivot is locked into place with the stop pin on the lock side to prevent rotation and provides lock bar over travel protection.
  • Blade finish is blasted then stonewashed two-tone.
  • Hidden 1/8" high strength hardened stop pin.
  • Shouldered stainless steel standoffs.
  • Caged bearing system for ultra smooth and quick operation.
  • Recessed titanium pocket clip with Curtiss Knives crosshairs logo and tip up carry.


  • Overall Length: 8.875″
  • Blade Length: 3.75″
  • Cutting Edge: 3.625″
  • Blade Thickness: 0.16″
  • Blade Style: Spanto
  • Blade Material:  Magnacut
  • Blade Grind: Hollow
  • Finish: Stonewash - Two Tone
  • Edge Type: Plain
  • Handle Length: 5.125″
  • Handle Thickness: 0.54″ Titanium SPM-Mill Torched
  • Handle Material: 6Al4V Titanium
  • Weight: 7.10 oz.
  • User: Right Hand
  • Pocket Clip:Tip-Up
  • Knife Type: Manual
  • Opener: Flipper
  • Lock Type: Frame Lock
  • Blade Finish: Two-Tone
  • Pivot Assembly: Caged Bearings
  • Pocket Clip: Titanium (Tip-Up, Right Carry)
  • Weight: 5.15 oz.
  • Designer: Dave Curtiss
  • Handmade in the USA

Quoted directly from David Curtiss “Curtiss Custom Knives is a veteran owned small business. When I decided to create this business, I had one standard in mind. To make the best knives and give the best customer service possible. I am the only one in our shop. No magic mini shop monkeys or anything. I start with a thought and turn it into a CAD drawing. If I like what I see, I create run files and cut my parts on our waterjet machine. Yes we have a waterjet in our shop. After the materials are cut into the basic shapes, I use our CNC machining center for the secondary processes such as milling, drilling, pockets and tapping. I do my blade grinds by hand on 2″x 72″ belt grinders that I designed and built. Other shop equipment includes heat treat oven, blast cabinet, vibe machine and misc. other machines. Anything else is done by hand by me. I do all of my sharpening on a belt machine I built. All knives receive a 20 degree polished edge. I do currently outsource for some hardware but we hope to make that ourselves soon. So I do not put my knives in a “mid-tech” or “production” classification. I call my knives “CUSTOM”. We own and operate all machinery in house.”

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