Spyderco’s Squarehead Folder Pocketknife

Spyderco teams up with Darriel Caston to make the Squarehead pocketknife.
Spyderco's new pocketknife.
Spyderco's collaboration with Darriel Caston produced the Squarehead Folder.|Photo by Spyderco

Spyderco has collaborated with Darriel Caston to create the Squarehead. Caston, an electrical engineer, has been making custom knives part-time since 1992.

The Squarehead is a compact pocketknife that does not miss on precision. This knife has a unique share-shaped sheepfoot blade made of CPM® S30V®powder metallurgy stainless steel. The blade has a Trademark Round Hole, which allows for a one- or two-handed opening with ease.

The single-sided, flat chisel grind offers great geometry and strength. It also allows for the PlainEdge cutting edge to lie against the handle scale safely. The Squarehead’s single-sided handle is made from titanium and comes in a stonewash finish. This one-piece construction comes with an integral black strap that can also be used as a blade stop and guard for its edge.

This lightweight pocketknife also includes a LinerLock-style mechanism that locks the blade in place when open. Although the Squarehead does not include a pocket clip, it is equipped with a wide slot in the handle made to easily attach to a chain, lanyard and more.


  • Length overall: 3.30″ (84 mm)
  • Length closed: 2″ (51 mm)
  • Blade thickness: 0.118″ (3.0 mm)
  • Blade length: 1.30″ (33 mm)
  • Cutting edge: 1.25″ (32mm)
  • Handle material: Titanium
  • Blade steel: CPM S30V
  • Weight: 1.1 oz (31 g)

The Squarehead pocketknife can be purchased at www.spyderco.com for $129.95.

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