I bough this for my dad...just got it and opened it...and I cant figure out to close it...help?

Tara - With the knife in the open position, hold the knife in your hand with the blade pointed to the left. On the handle is a semi-circular cutout on the handle near the blade. There is a silver piece of spring steel running through that semi-circle. If you push on that piece of steel, you will see that it pushes in. When you push that spring steel in, it releases the tension on the blade and allows you to fold the blade back into the handle. With your left hand, gently fold the knife blade down and it will allow you to close the knife. Be careful, Spyderco knives come from the factory with razor sharp blades and you can serious cut yourself if you are not careful. Hope that helps !

Should I get this knife or the Kershaw Cryo 2?

I am not really a "knife guy" so I don't have any knowledge of the Kershaw Cryo 2. All I can say is that I have owned this knife for about three years and really enjoy it. I have also purchased this knife as a gift on two separate occasions.

What's the most economical way to sharpen this blade?

The absolute cheapest way would be to find a piece of plywood, an old mouse pad, and some rubber bands, then just buy some metal wet/dry sandpaper in several grits. I did this and it worked pretty well. Google "convex sharpening". Be advised that it rounds off the secondary bevel, so you kind of have to keep sharpening it this way once you go this route.

I got my tenacious week and a half ago and the blade was dead on center when I got it but now it's way off any suggestions ?

Either you can ajust the pivot pin yourself or send it back to spyderco.

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Tenacious Folding Pocket Knife, PlainEdge

Product ID: 1442121

Details

Age Range (Description)
Adult
Blade Material
Stainless
Brand
Spyderco
Color
Black
Handle Material
G10 Composite
Included Components
Pocket Clip

🔒LinerLock for secure one-handed use

🖐️G-10 handle for slip-resistant grip

🗡️3.4" 8Cr13MoV steel blade

$181

Duties & taxes included

In stock

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Description

🗡️ Own the edge, master every cut.

TAILORED CARRY - Four-position pocket clip and open-back design let you customize your carry style for ultimate convenience on the move.
EFFORTLESS CONTROL - Smooth LinerLock mechanism offers reliable, one-handed operation under pressure—because every second counts.
VERSATILE PRECISION - Full-flat-ground satin blade excels at slicing a variety of materials with unmatched efficiency and adaptability.
ENDURANCE ENGINEERED - Precision 8Cr13MoV steel blade delivers elite edge retention and toughness for daily heavy-duty tasks.
GRIP WITH CONFIDENCE - Durable peel-ply G-10 handle ensures a tactical, slip-resistant hold in any environment—rain or shine.

The Spyderco Tenacious Folding Pocket Knife features a 3.4-inch 8Cr13MoV stainless steel blade with full-flat grind for superior slicing. Its G-10 handle provides a secure, slip-resistant grip, while the proven LinerLock ensures safe, one-handed operation. Lightweight and customizable with a four-position pocket clip, this knife is engineered for durability and versatility, making it a top choice for outdoor enthusiasts and professionals alike.

Specifications

ASIN	B001EI7578
Age Range Description	Adult
Best Sellers Rank	#23,113 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #30 in Folding Hunting Knives
Blade Edge	PlainEdge
Blade Length	3.4 inches
Blade Material	Stainless Steel
Blade Shape	PlainEdge - G-10 Handle
Blade Type	Non-Serrated
Brand Name	Spyderco
Color	Black
Customer Package Type	Standard Packaging
Customer Reviews	4.7 4.7 out of 5 stars (3,464)
Global Trade Identification Number	00716104008612, 00716104009336
Hand Orientation	Ambidextrous
Handle Material	G10 Composite
Included Components	Pocket Clip
Item Length	7.77 inches
Item Shape	PlainEdge - G-10 Handle
Item Type Name	Holster
Item Weight	0.12 g
Manufacturer	Spyderco
Model Name	C122GP
Model Number	8612
Number of Items	1
Part Number	008612
Product Care Instructions	Hand Wash Only
Recommended Uses For Product	Camping
Reusability	Reusable
Set Name	Tenacious 8Cr13MoV
Size	3.4"
Special Features	Lightweight
Style	PlainEdge
UPC	885127580433 716104008612 885111346663 885111299730
Unit Count	1 Count
Warranty Description	2 Year Manufacturer

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