Spyderco’s Sprint Run Delica 4 is made with Aogami Super Blue steel. Aogami Super Blue is produced exclusively by Hitachi Metals at their plant in the Shimane Prefecture, Japan. They use high quality iron-sand found only in this region to create different grades of steels including white steels and blue steels. The steel itself isn’t blue or white in color but the designation refers instead to the color paper the raw steel comes wrapped in when delivered to Hitachi. In Japan its common practice for steels to be named and referred to; based on the color of the packaging the raw steel is delivered in. Super Blue is the highest grade blue steel and contains up to 1.5% carbon for wear resistance and chrome to elevate hardness and improve edge holding and corrosion resistance. The gray fiberglass reinforced nylon handle features Spyderco’s patented Bi-Directional Texturing for slip-free tactile traction. Inside the handle are dual skeletonized stainless steel liners which strengthen the knife without additional weight and double as an anchor for external and internal components to attach through generating more sturdiness and rigidity. The knife locks up solidly with a mid-positioned back-lock with a four-way tip-up, tip-down, left- or right-handed hourglass pocket clip. A Spyderco Sprint Run is defined as a limited edition production of any Spyderco product in a configuration different than what has been previously produced. It can include changes in the handle color, materials, blade steel, coatings, etc. Specifications–Length Overall: 7 1/8″ (181 mm); Length Closed: 4 1/4″ (108 mm); Hole Diameter: 1/2″ (13 mm); Blade Length: 2 7/8″ (73 mm); Cutting Edge: 2 9/16″ (65 mm); Blade Thickness: 3/32″ (2.5 mm); Blade Steel: Super Blue; Weight: 2.5 oz. (71 g); Handle Material: Gray FRN; Made in Seki-City, Japan.
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