Spyderco Delica 4 K390 – Industrial Steel, Everyday Precision

The Delica 4 Lightweight K390 takes one of Spyderco’s most iconic EDC designs and supercharges it with Bohler-Uddeholm’s K390 MICROCLEAN tool steel — a high-performance alloy engineered for extreme wear resistance and edge retention. Originally developed for industrial cutting and punching, K390 gives steel connoisseurs a blade that stays sharp through the toughest tasks.

This version pairs a fully serrated edge with a full-flat grind for slicing efficiency and a satin finish for understated style. The lightweight blue FRN handle is textured for grip and houses a reliable back lock, while a four-position stainless steel clip gives ambidextrous tip-up or tip-down carry. Made in Seki City, Japan, this Delica is built to work hard and carry light.

Product Dimensions

• Overall Length: 7.15" (182 mm)
• Closed Length: 4.25" (108 mm)
• Blade Length: 2.90" (74 mm)
• Cutting Edge: 2.56" (65 mm)
• Blade Thickness: 0.098" (2.5 mm)
• Weight: 2.4 oz (68 g)

Features

• Blade Steel: Bohler K390 MICROCLEAN — delivers exceptional edge retention and wear resistance
• Blade Style: Drop point
• Blade Grind: Full-flat — enhances slicing performance and reduces drag
• Blade Finish: Satin
• Blade Edge: Serrated — powers through rope, webbing, and fibrous materials
• Handle Material: Blue FRN (Fiberglass Reinforced Nylon) with Bi-Directional Texturing® — lightweight, durable, and secure in hand
• Locking Mechanism: Back Lock — smooth, strong, and ambidextrous
• Pocket Clip: Four-position stainless steel — tip-up/down, ambidextrous; supports all carry preferences
• Country of Origin: Japan — precision-built in Seki City