Nautilus Exo-Tool™ (for Spyderco® Delica® 4)


The Nautilus Exo-Tool™ turns your carry knife into a versatile mariner’s tool with the addition of an on-board folding marlinspike. Ideal for loosening knots and splicing rope and line, the marlinspike, with its Cerakote® finish and stainless steel components, is specifically designed for use in nautical environments. This hardcoat-anodized, aluminum-bodied module also features a wave-spring-assisted detent system that maintains the tool’s open or closed position. (Knife not included.)

  • Free shipping.
  • T6 & T8 Torx wrenches included for assembly / disassembly of your knife.
  • Professional installation services are also available. Contact us for details.
Sold By: 5x5 Combat Solutions, LLC.
SKU: 331114 Categories: ,


AfterKnife™ Exo-Tools™ supercharge the versatility of your everyday carry knife. These easily installed modules replace the factory back spacer of your knife to provide convenient, on-board, secondary functions such as screwdrivers, rescue hooks, glass breakers, marlinspikes and discreet carry options. Precision machined from aircraft-grade aluminum and various stainless steels, the Exo-Tool series is manufactured to extreme tolerances to ensure an exact fit and provide maximum durability.

Available for these knives:

  • Spyderco® Delica® 4 (fits all Delica 4 Lightweight models)
  • Spyderco® Endura® 4 (fits all Endura 4 Lightweight models)
  • Spyderco® Matriarch® 2 (fits all Matriarch 2 models)
  • AfterKnife Exo-Tools™ for additional makes and models coming soon


There are no reviews yet.

Be the first to review “Nautilus Exo-Tool™ (for Spyderco® Delica® 4)”