Spring Assist - Tailwind - Bio-hazard Tanto Stiletto - Plain


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  • Razor-sharp 7Cr13 stainless steel blade
  • Exclusive Tailwind assisted-open mechanism
  • Built-in blade spur for one-hand opening
  • Slim profile makes it discreet
  • Injection-molded nylon handle
  • 4 3/4" closed; 8 3/4" overall

This high-powered stiletto spring assisted knife mixes style with tactical ability. Built for self-defense, this piece is equipped with Tailwind spring assist technology for lightening fast blade deployment. The assisted-open mechanism is activated by pressing the blade spur on the back of the blade.

The blade is forged from 7CR13 stainless steel, comes sharp from the factory, and is finished in black. The handle has a futuristic design with bio-hazard artwork, and provides a secure grip even when wet. The handle also features a belt clip for easy carry. 3 3/4 in. blade, 8 1/4 in. overall.

How are Spring Assist different from a Gravity Knife or Switchblade Knife?

Gravity or Switch Blade knives feature a button, level, or other type of switch that releases a spring pressure to automatically open the blade. On a Spring Assist knife, there is no separate button or switch. Instead, you apply pressure to part of the blade to begin the opening process. This is usually a small bump of metal which sticks out under the knife, making it fast and comfortable to use. Once you press on that part of the blade, it automatically opens and locks into place. Since the action of opening the knife is started by pressing the blade metal, instead of a button or switch, it is considered to bypass the laws which ban Switch Blade knives.

19 UC2906

Customer Reviews | Average Rating: 5.00 out of 5

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Customer Reviews

Sean Moran
Feb 07, 2016
(5 out of 5)
Great EDC

This knife is sleak and practical. It has a very sharp blade and clean action. I got this BOGO and both knives are identical with no issues. Thanks BudK!


Chad falkins
Feb 07, 2016
(5 out of 5)

I bought four of these blades and have one left everyone of my friends wants one so I been giving them away. Its a must have blade to own. going to be buying more of these..


Brandon Gillig
Oct 01, 2015
(5 out of 5)
Good Knife

I bought this knife several weeks ago and like the other tailwind knives I was not disappointed. And the blade was not as sharp as I would like so what a little sharpening won't hurt.


Paul Bauer
Feb 14, 2015
(5 out of 5)
Very well made for the price!

I bought 3 of them. At $9.98 each, I bought an extra one for a backup, and one as a gift for my dad. The steel is a very durable 440 stainless steel which holds an edge well and is inexpensive. The handle is a very lightweight ABS plastic. It seems fairly well made for the price. The spring assist makes this act basically just like a switch blade. It's now my EDC knife.


David L.
Mar 28, 2014
(5 out of 5)
solid cutting knife

The knife's steel has impressed me. It cuts well from the box although once sharpened it holds an edge. I sharpened it two weeks ago and it still shaves hair. There's no play in the blade to the handle. It is solidly constructed. It is case quality if not better. If your questioning this knife there's no question. Get it. The spine of the handle is open with spacers and steel liners. The handle scales are hard plastic but the grooving provides plenty of grip. This knife has the quality of a 60 dollar knife. The black on the blade does not scratch or come off easily and is smooth.I rarely do this, and i sharpen other people's knives from time to time, it is excellent. Thank you budk.


Mar 22, 2013
(5 out of 5)
Well built with style

This is a well-built knife that I use for apples. The operating mechanism is smooth and the materials used are quite durable. The blade steel is excellent and can be sharpened to razor sharp. It fits the hand well and I enjoy the style.


1 - 6 of 6 Reviews