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Mantis B-3 "The Original" Necessikey Keychain Knife 1" Blade, LED Light, Bottle Opener

Customer Reviews 3.429 Read 7 reviewsWrite a Review
Part Number: MNTB3
Manufacturer: Mantis Knives
Retail Price: $16.00
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MNTB3: "The Original" Necessikey
Mantis Knives

The MANTIS Original, the keychain knife that started the craze. This perfect little dynamo provides all of the essentials, right when you’ll need them. A blade, a bulb, and a bottle opener, right on your keys! Unlike some of the small LED bulbs on the market, we designed the B-3 to allow for replacement batteries. Just one of the many great benefits that MANTIS brings to the industry. The blade is 1” long, and the whole unit is just a little bit larger than a quarter.

  • Overall Length: 2 1/4"
  • Blade Length: 1"
  • Blade Material: 420HC
  • Blade Style: Spear Point
  • Handle Material: Polymer
  • Lock Style: Slip Joint
  • Carry System: Key Chain Ring
  • Weight: 1.5 oz.
  • Special Features: LED Light, Bottle Opener, Key Chain Ring
  • Made in Taiwan

UPC Code: 014978908602

Zytel Handles
Zytel Handles
A nylon polymer that is lightweight and extremely durable, Zytel can be shaped and textured to provide excellent grip.
3.429 (7 reviews)
3.4 out of 5 stars
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1 star
4 out of 5
Nick S
Chicago, IL
Jan 27, 2012
Pros: Overall Quality, Blade Sharpness, None
Cons: Lock Type
Mantis B-3 Review
Nice to have knife, light, and bottle opener together. Knife blade is sharp but does lock. This is not an issue since the blade would only be used to open packages or cut string.
4 out of 5
Manuel R
fort worth, tx
Jan 14, 2012
Pros: Handle Material, Blade Material, Lock Ease of Use, Weight, Sheath, Handle Feel, Blade Sharpness
Cons: Pocket Clip, Lock Type, Ease of Opening, Overall Quality, None
cool product
I try to use this product on everything is pretty handy small it fits and combines with your keys without making you feel uncomfortable I really like it I lobe the shape the design and the mantis symbol I wish there was a necklace has a product Well to be honest I didn't like the battery cap the first time it fell on the ground it came off and I lost it I can't see in the dark LOL other than that I lobe the product
3 out of 5
Loveland, OH
May 27, 2011
Pros: Handle Feel, Weight, Blade Sharpness, None
Cons: Lock Ease of Use, Ease of Opening, Overall Quality
Mantis B-3 review
This must have been designed by a left-hander; you need to hold this in your left hand to open the blade (not very easy when used as a keychain). The LED light has a bad "halo" effect where part of the illumination field is unlighted. You better have strong fingernails to open the cap-lifter once locked in place; it's very tight. Does what it says but I have other knives that do the same and are made better than this.
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