Spyderco Delica 4 K390 – High-Performance Steel, Lightweight Precision

A cornerstone of Spyderco’s lightweight lineup, the Delica 4 K390 pairs a time-tested design with one of the most advanced tool steels available. The full-flat-ground blade is crafted from Böhler-Uddeholm K390 MICROCLEAN® — a cold work tool steel engineered for extreme wear resistance, high compressive strength, and long-lasting edge retention. Ideal for steel connoisseurs and demanding users alike, this blade is built to go the distance.

The lightweight blue FRN handle features Bi-Directional Texturing® for a secure grip and houses a reliable back lock mechanism for smooth, ambidextrous operation. Skeletonized stainless steel liners add strength without bulk, and a four-position stainless steel clip ensures versatile tip-up or tip-down carry. Made in Seki City, Japan, this Delica is a compact powerhouse with serious cutting credentials.

Product Dimensions

• Overall Length: 7.15" (182 mm)
• Blade Length: 2.90" (74 mm)
• Cutting Edge: 2.56" (65 mm)
• Closed Length: 4.25" (108 mm)
• Blade Thickness: 0.098" (2.5 mm)
• Blade Steel: Böhler K390 MICROCLEAN®
• Blade Style: Drop point
• Blade Grind: Full-flat
• Blade Finish: Satin
• Edge Style: Plain
• Handle Material: Blue FRN (Fiberglass Reinforced Nylon)
• Lock Type: Back Lock
• Clip Position: Tip-up/down, ambidextrous
• Weight: 2.4 oz (68 g)
• Country of Origin: Japan

Features

• K390 tool steel blade: Delivers exceptional edge retention and industrial-grade wear resistance
• Plain edge with full-flat grind: Offers clean slicing and precise control
• Blue FRN handle with Bi-Directional Texturing®: Lightweight, durable, and slip-resistant
• Skeletonized stainless steel liners: Add strength without excess weight
• Back lock mechanism: Smooth, strong, and ambidextrous
• Four-position stainless steel clip: Supports all carry preferences
• Made in Japan: Precision-built in Seki City