Spyderco C79PSBBK Assist Black Blade Folding Knife

The Spyderco Assist: Purpose-Built for Emergency Response

Spyderco designed the Assist with a singular mission in mind: to serve those who need a knife that works intuitively under pressure. Whether you're a fire/rescue professional or a citizen committed to preparedness, this lightweight folder delivers straightforward functionality and reliable performance when it matters most.

Blade Design and Materials

The Assist features a distinctive blunt-nose blade geometry—Spyderco's patented lift-and-pry shape—crafted from high-carbon VG-10 stainless steel. The blade is coated with non-reflective black diamond-like carbon (DLC) for durability and low visibility.

Cutting Edge Configuration:

• 3.69" total blade length with 3.38" of cutting edge
• Majority of edge is serrated for aggressive cutting through tough materials
• Final inch at the tip remains plain-edged for precision work
• Wavy pattern along blade and handle for controlled rope cutting—place rope in the groove between partially open blade and handle, then squeeze to slice without full exposure

One-Hand Operation

The Cobra Hood—a metal cap positioned above the one-hand-open hole—serves dual purposes. It guides your thumb over the opening for quick, tactile deployment, then functions as a textured leveraging platform during cutting operations. This design allows confident, reliable opening by feel, even in low-light or high-stress situations.

Handle and Additional Features

The handle is constructed from lightweight fiberglass-reinforced nylon (FRN) with a black textured finish for secure grip control. A reinforced wire pocket clip accommodates both left- and right-hand carry, mounted through the handle for secure retention.

Emergency Tools:

• Built-in survival whistle at the butt end—shrill and high-pitched for signaling
• Retractable carbide-tip glass and ice breaker housed within the handle, exposed when the closed blade is squeezed against the handle and retracted when pressure is released

The Assist is purpose-engineered for professionals and prepared citizens who demand a knife that performs without complication.