Spyderco Endura 4 Gray, 3.8" Plain Stainless Blade, Emerson Wave Opening, FRN Handle
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Manufacturer: Spyderco C10PGYW
Specifications and features:
3-13/16" plain blade
8-13/16" overall length
3-7/16" cutting edge
VG-10 steel, flat saber ground
Gray fiberglass reinforced nylon handle
Bi Directional Texturing
Stainless steel liners
Slip resistant spine
Phosphor bronze washers
Four way tip up and tip down ambidextrous clip
Limited factory warranty
For warranty issues, contact Spyderco at 800-525-7770
Endura 4 Wave Folding Knife -
Waved models combine all that's functional and performance based in a Spyderco folder with the Wave blade opening feature made popular and patented by Ernest Emerson of Emerson Knives. The Wave is a hook curving out the top of the knife's blade. When removing the knife from a front pocket the Wave catches the pocket's edge quickly opening the knife blade ready to use. The knife can also be taken out of the pocket without engaging the Wave Opening Feature by pulling it straight up and out with your fingers on top of the closed blade. Waved Delicas and Enduras have screw construction making cleaning and adjusting easier. Their gray fiberglass reinforced nylon handles are molded with Bi Directional Texturing® for traction and improved ergonomics. Inside the handle dual skeletonized stainless steel liners strengthen the knife without additional weight and create an anchor for external and internal components to attach through for more sturdiness and rigidity. Their VG-10 blades are flat saber ground with a stronger tip and larger 13mm opening hole. Added to the blade's spine is slip resistant jimping. Phosphor bronze washers smooth out the open and close action and the clip is upgraded to a four way tip up, tip down, and left or right handed clip.
VG-10 Stainless Steel -
VG-10 has Carbon (C) content between 0.95-1.05, Chromium (Cr) content between 13.0-15.0, Molybdenum (Mo) content between 0.2-0.4, and contains less than 0.25 of Nickel (Ni). During forging, Mo and Cr forms hard double carbide bonds which help improve the abrasion and corrosion resistance of the steel. It has a hardness of 58-61.
Tip Up and Tip Down -
Refers to which direction the folded knife if positioned by its pocket clip. When closed and clipped in a pocket, whichever direction (up or down) the blade's tip sits defines if it is termed tip up or tip down.
Flat Saber Grind -
A knife's edge, ground completely flat without a radius that tapers from the cutting edge to a grind line down the center of the blade. Unlike a Full Flat Grind, which tapers from the cutting edge all the way to the blade's spine the Flat Saber only is flat ground just to the grind line.
Bi Directional Texturing -
A texture molded into an FRN handle, which is a series of graduating, sized forward and backward steps that radiate outward from the center of the handle. This texture provides resistance to slipping and sliding when gripped in the hand.
Using both hands with equal ease. Pertaining to knives, it is a knife that is not solely designed for a left or right handed person but can be used with equal ease by both hands.
Fiberglass Reinforced Nylon (FRN) -
A nylon polymer mixed with glass fiber that is then injected into a mold for making lightweight knife handles.