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Spyderco C166P Equilibrium Folding Knife 1.69" VG10 Plain Blade, Stainless Steel Handles

Customer Reviews 4.833 Read 12 reviewsWrite a Review
Part Number: SP166P
Manufacturer: Spyderco Knives
Retail Price: $154.95
Our Price: $99.95
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SP166P: C166P Equilibrium
The Equilibrium takes the highly refined symmetrical design of the popular Balance folding knife and scales it up to offer a full four-fingered grip. Like the Balance, the Equilibrium was designed by renowned knifemaker Ed Schempp. And, like its inspiration, it packs impressive cutting performance into a remarkably compact package.

The Equilibrium features a satin-finished stainless steel handle that forms the foundation for its Reeve Integral Lock (R.I.L.) mechanism—a robust, reliable lock built into the reverse-side handle scale. A four-position pocket clip allows the knife to be conveniently carried on either side of the body in either the tip-up or tip-down position. Its compact size also makes it a practical and stylish money clip when carried inside the pocket.

The blade of the Equilibrium is precision machined from VG10 stainless steel. Its perfectly straight cutting edge is supported by full-flat-ground bevels to create a highly functional wharncliffe profile. A pronounced choil (scallop) in the heel of the blade provides a solid index finger purchase and, together with the contoured handle, offers a comfortable and secure four-fingered grip. The choil also places the blade’s edge in line with the knuckles of the hand to offer impressive cutting power for its size.

Spyderco's Trademark Round Hole completes the package to support both easy one-handed opening and fingernail-friendly two-handed opening. Whichever method you prefer, we're confident you'll find the Equilibrium to be one of the most convenient, compact and capable folding knives you've ever used.
  • Blade Length: 1.69"
  • Cutting Edge: 1.20"
  • Closed Length: 3.05"
  • Overall Length: 4.74"
  • Blade Thickness: 0.098"
  • Blade Material: VG10 Stainless Steel
  • Handle Material: Stainless Steel
  • Weight: 2.2 oz.
  • Made in Japan

UPC Code: 716104009466

Frame Lock
Frame Lock
Developed by Chris Reeve, it functions like a liner lock but the lock is comprised of one of the handle scales. It's an extremely strong and easy to manipulate lock.
Pocket Clip
Pocket Clip
Includes a pocket clip for easy accessibility and a more secure carry.
Made in Japan
Made in Japan
The exotic steel Capital of the World, Japan produces and innovates some of the best products, from pocket to kitchen knives and everything in between.
Steel Handles
Steel Handles
Stainless Steel knife handles provide strength and durability and look and feel great.
VG10 Stainless Steel
VG10 Stainless Steel
This Japanese super-steel is known for it's ease of sharpening, ability to take a super fine edge, and outstanding corrosion resistance making it one of the best bang-for-buck steels on the market.
4.833 (12 reviews)
4.8 out of 5 stars
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5 out of 5
Joshua N.
Aug 17, 2016
Pros: Lock Ease of Use, Overall Quality, Handle Feel, Ease of Opening
Cons: None
Neat EDC at $60
When this knife launched with a somewhat ridiculous price tag I didn't think much of it but when KC started clearing them out for $60 and Spyderco discontinued the product I figured I'd give it a try. Fit and finish is what I expect from Spyderco's Japanese factory; it's very good but not quite perfect. The knife is extremely smooth though and locks up pretty much flawlessly. I am very impressed with how nice the lockup feels. Design could benefit from some additional traction where your thumb rests on the spine of the blade but I see why this was sacrificed for the symmetrical concept and I think adding something like that would take away from the knife more than it would add. Great little slicer for opening packages, light whittling, and other EDC tasks especially when paired with another larger knife. I would absolutely recommend picking one up before they're gone.
5 out of 5
Matthew H.
Albuquerque, NM
Aug 15, 2016
Pros: Blade Sharpness, Lock Type, Handle Material, Overall Quality, Pocket Clip, Ease of Opening, Handle Feel, Weight, Lock Ease of Use, Blade Material
Cons: None
First off, I'd like to thanks KnifeCenter for speedy (free) delivery, and minimal yet safe packaging. OK, the knife. I love it. I keep playing with it. It's actually a bit bigger than I imagined, and heavier too. It is still tiny, don't get me wrong. But it's perfect for the 5th jean pocket. Also, sharp and outstanding quality. My first Spyderco. Not my last. While I do think many of their products are overpriced, (this had an MSRP of over $100? Really?) I cannot deny the mechanical and aesthetic near-perfection when I hold this guy. It cuts very well for a blade so short. doubled up paracords were nothing to it. Use the finger choil. Lock up is great. As good as my Kershaw Leek. Which, I have noticed actually has (had?) the best lock up of any frame-lock folder I've owned. I don't need a lanyard; it is long enough for my medium hands. But, I do want to buy that ~17 dollar Spyderco lanyard anyway. I'm a sucker for cool gear. And I have a bit of disposable income lately. This will not replace my tiny pure utility fixed blade favorite (CRKT Folts Minimalist), but it will be key in my rotation of EDC/man-jewelry knives that are acceptable in an office setting.
5 out of 5
Denver Colorado
Jul 22, 2016
Pros: Overall Quality, Lock Type, Ease of Opening, Blade Material, Handle Material, Lock Ease of Use, Blade Sharpness, Weight, Sheath, Handle Feel, Pocket Clip
Cons: None
Perfect for the Every Day Office Carry
The Spyderco C166P is the best EDC blade; ideal for carrying at the office. This knife quickly became my #1 EDC pocket knife.
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