Spyderco Delica 4 CPM SPY27 Cobalt Blue

A Modern Classic with Advanced Steel

The Delica 4 stands as one of the most recognizable and respected lightweight folding knives ever designed. This version elevates that proven design with Spyderco's proprietary CPM SPY27 blade steel—a powder metallurgy innovation developed in partnership with Crucible Industries.

Superior Steel Performance

CPM SPY27 represents a significant advancement over traditional stainless steels. By enriching the cobalt-enhanced chemistry of VG-10 with niobium, nitrogen, and increased volumes of carbon, molybdenum, and vanadium, Spyderco created a material that delivers:

• Exceptional edge retention that holds a sharp edge through extended use
• Superior toughness for reliable performance in demanding conditions
• Excellent corrosion resistance for dependable operation in any environment
• Easy sharpening when maintenance is needed

Refined Design Details

The 2.9" blade features a full-flat grind and plain edge, optimized to take full advantage of CPM SPY27's properties. A satin finish provides both durability and a refined appearance.

The lightweight fiberglass-reinforced nylon (FRN) handle is injection molded in a distinctive cobalt blue—a signature color of Spyderco's elite SPY27 family. The back lock mechanism provides secure blade retention, while the four-position pocket clip offers versatile carry options: left or right side, tip-up or tip-down.

At 7.11" overall length, the Delica 4 remains one of the most packable and practical everyday carry knives available.