Helical Folding Knife w/ Locking Liner

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An everyday carry with a twist. This sleek, tactically-inspired folding knife is a Ken Onion thought experiment realized: what would it look like to put a rectangular knife handle in a vise grip and twist? In classic Onion form, the result is a surprisingly ergonomic and supremely useful everyday carry.

Ken Onion infamously pushes the limits of knife design with every new creation that’s released from his Kaneohe, HI shop. The Helical™ is no exception. With a hardworking powder coated D2 tanto blade, it’s quick to dig into an unopened box or snip a loose thread. An understated flipper doesn’t get in the way when you slip it into a pocket, but it quickly deploys the blade—when open, a locking liner secures it in place.

The twisted handles are the showstopper, carefully designed to fit snugly in your palm and outlast any mud, sweat, and grime it encounters.

The Helical™ is a twisted take on an old classic.

D2 blade steel holds an edge well and has a black oxide finish for corrosion resistance
Flipper opening for fast blade deployment
6061 aircraft grade aluminum handles are strong and lightweight


  • Blade Length: 3.524" (89.51 mm)
  • Blade Edge: Plain
  • Blade Steel: D2, 59-61 HRC
  • Blade Finish: Black Oxide
  • Blade Thickness: 0.128" (3.25 mm)
  • Closed Length: 4.582" (116.38 mm)
  • Weight: 3.6 oz.
  • Handle: 6061 Aluminum
  • Style: Folding Knife w/Locking Liner
  • Overall Length: 8.125" (206.38 mm)


Handle Material:AluminumAluminum
Blade Finish:Black OxideSatin
Blade Style:TantoTanto
Handle Length:4.58"4.58"
Blade Length:3.52 inch3.52 inch
Blade Thickness:0.13"0.13"
Hand Use:Right HandRight Hand

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