N690Co, a cobalt additive steel manufactured in Europe. Positioned forward of the Spyderco Round Hole sits an indentation, ready to hold the index finger securely on the blade, boosting control. The backside of the handle doubles as an integral Chris Reeve-style LinkerLock and has a spyderco bus laser cut in detail out of the steel scale. Blade length is 3 7/16". Overall length is 7 7/16".  (less)

years until two years ago when Spyderco started manufacturing blades using an alloy called H-1. H1 is precipitation-hardened steel, utilizing .1% nitrogen instead of carbon. Carbon is the component in steel that makes the blade hard and allows it to hold an edge. Carbon also reacts to chloride, making rust. With nitrogen replacing the carbon; hardness and edge retention are realized but nitrogen doesn t react to chloride so it physically cannot rust. Aqua Salt s H-1 blade is thick for hearty use with a weight reducing swedge grind on the spine. It is available fully PlainEdged or SpyderEdged and has a thin, hollow-ground cutting surface. For enhanced visibility the fiberglass reinforced nylon handle is available in co...  (less)

a weight-reducing swedge along the spine. Steel clip positions the knife for tip-down pocket carry.  (less)

Blade Thickness 1/8" Weight 3.9 oz.  (less)

curving arc holds what you're cutting against the sharpened edge keeping it from slipping off the tip. Custom knifemaker David Boye developed the dent in the locking lever, which insures the blade remains securely locked open when gripping the handle with force. Cut out of the handle is a drying vent allowing air to circulate around the blade when closed wet. Metal clip is positioned for tip down carry. SPYDERCO HARPY , KNIVES , FOLDING KNIFE  (less)