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Jake Hoback OSF UHEP Flipper 3.625" S35VN Black Fallout Blade and Titanium Handles

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Manufacturer: Jake Hoback Custom Knives
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JHKOSFUHEPBFO: OSF Ultra High-End Production Flipper, Black Fallout
Jake Hoback Custom Knives


OSF stands for Open Source Folder and it was an idea of Jake's a number of years ago that had the potential to change the industry. Jake wanted to help out aspiring knifemakers by releasing the entire CAD file to allow someone with a CNC machine to make this exact knife. Every minute detail Jake spent months perfecting was included, so all you had to do was run the program and your CNC mill would take care of the rest. The only stipulation was that you could not profit from the manufacturing of his design. As you'd expect, someone abused this privilege and Jake was forced to take down the CAD files and put the OSF on the back burner... until now. The OSF is without a shadow of a doubt our favorite Hoback, so we are over the moon to have a UHEP model now available.

Jake pulled out all the stops on this OSF Ultra High-End Production mid-tech. It has all of the exact same features as his custom shop work. He didn't dumb down this knife nor use inferior materials or hardware. This knife will rival his customs for fit, finish, materials and quality. Jake believes his hands-on approach helped immensely with this project. The machine shop matched and assembled the knives exactly as he would in his own shop because he was there with them every step of the way to show them how he expected it to be done. The final product is this amazing knife with the same feel as his custom at a great price.

The OSF has many design features and characteristics that make it one of the best knives to be put back onto the market in recent years. The sheepsfoot blade gives you belly for slicing and a reinforced tip for stabbing, which is why it's one if not our favorite blade shapes. The handle tapers down toward the butt end, making it extremely comfortable no matter your grip method. It's a big, beefy knife, like most things Hoback, but it's extremely well designed for everyday carry and tactical applications. It measures 8.75" overall with a 3.625" blade made from CPM-S35VN stainless steel with a black stonewashed finish. The titanium handle has a black fallout finish and matching pocket clip. The two pillar construction makes this knife completely flow-through so you can easily see the intricate machining that went into creating the internal lightening pockets. It includes the HRD Hoback Roller Detent, replaceable lockbar insert/overtravel arrester, standard Torx hardware throughout, and a story unlike any other knife in the industry.
  • Pivot Thrust Bearings
  • HRD (Hoback Roller Detent)
  • Hardened Stainless Steel Lock Insert with Overtravel Prevention
  • Engineered Internal Lightening Pockets
  • Standard Sizes on all Screws for Ease of Replacement
  • Hardened Stainless Steel Bearing Races
  • Blade Length: 3.625"
  • Cutting Edge: 3.50"
  • Handle Length: 5.125"
  • Overall Length: 8.75"
  • Blade Material: CPM-S35VN Stainless Steel
  • Blade Thickness: 0.179"
  • Blade Style: Sheepsfoot
  • Blade Grind: Flat
  • Blade Finish: Black Stonewash
  • Handle Material: Black Fallout Titanium
  • Handle Thickness: 0.60"
  • Locking Mechanism: Frame
  • Pivot Assembly: Thrust Bearings
  • Pocket Clip: Titanium (Tip-Up, Right/Left Carry)
  • Weight: 6.3 oz.
  • Designer: Jake Hoback
  • Made in the USA
Semi-Custom or Mid-Tech knives are knives produced by a process in which the designer has more direct--but not complete--involvement; parts of these knives may still have been made by others.
Frame Lock
Frame Lock
Developed by Chris Reeve, it functions like a liner lock but the lock is comprised of one of the handle scales. It's an extremely strong and easy to manipulate lock.
Pocket Clip
Pocket Clip
Includes a pocket clip for easy accessibility and a more secure carry.
A tougher steel than S30V, it retains the excellent corrosive properties and ability to take an edge, but improves on the ability to hold that edge.
Titanium Handles
Titanium Handles
A nonferrous metal, it's prized for its high strength to weight ratio and is often used on higher end knives.
Made in USA
Made in USA
This product is USA born and raised.
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