Originally designed to comply with restrictive British knife laws, the UK Penknife™ has developed a cult following among pocketknife enthusiasts worldwide. The original SLIPIT™ model, it combines one-hand opening via our Trademark Round Hole with the convenience and accessibility of clip carry. This unique expression of it showcases a full-flat-ground blade crafted from CPM® SPY27®, a cobalt-enriched particle metallurgy stainless steel developed specifically for Spyderco. The blade is complemented by fiberglass-reinforced-nylon (FRN) handle scales molded in a distinctive cobalt blue that is one of the signature colors of our family of knives featuring this proprietary steel.

  • Manufacturer: Spyderco
  • Model: UK Pen Knife
  • Designer: Sal Glesser 
  • Overall Length: 6.94 Inches
  • Blade Steel: SPY27
  • Blade Length: 2.94 Inches
  • Blade Thickness: 0.090 Inches
  • Handle Length: 3.00 Inches
  • Handle Thickness: 0.39 Inches
  • Type of Lock: Slip Joint
  • Carry Position: Tip Up – Right and Left
  • Country of Origin: United States
  • Weight: 1.90 Ounces