Otter Mercator Solingen K55 Black Cat Knife German, Carbon Steel, Army Issue, Lockback - L154
* Pricing Info

$54.95

MSRP* : $73.80 | You Save* : $18.85 (26%)
rated 4.7 stars out of 5 Read 87 reviewsWrite a Review
Part #: K55 | Otter Knives
In Stock
Calculate Shipping
Save to Wishlist
Earn 550 knifeREWARDS Points!

Description

K55: Carbon Black Cat Folding Knife

Otter

The Mercator German Army Issue Cat Lockback is a simple folding knife that features a 3.5" blade with a stainless steel handle. The blade is made from carbon steel with an effective nail nick for easy opening while the lockback mechanism locks the blade firmly in place. The handle is made from one piece of black coated steel and features a cat etched in gold color. The slim profile makes this knife easy to use and to carry. Made in Germany.

Specifications

  • Blade Length: 3.5"
  • Closed Length: 4.25"
  • Overall Length: 7.75"
  • Blade Material: Carbon Steel
  • Blade Thickness: 0.09"
  • Blade Style: Drop Point
  • Blade Finish: Satin
  • Handle Material: Black Stainless Steel
  • Handle Thickness: 0.24"
  • Locking Mechanism: Lockback
  • Weight: 2.9 oz.
  • Made in Solingen, Germany

UPC Code: 000000010153

Related Categories

Otter Knives, Otter Mercator K55 Folding Knife Series, Carbon Steel Blade Steel, Steel Handle Material, Folding Knives, Folding Knives Lockbacks, Made in Germany

Badges

Product Handle Badge: Steel Handles
Product Country of Origin Badge: Made in Germany
Product Lock Type Badge: Lockback

Customer Reviews

Otter Mercator Solingen K55 Black Cat Knife German, Carbon Steel, Army Issuerated 4.655 stars out of 5 (87 reviews)
4.7 out of 5 stars
5 star
63
4 star
21
3 star
0
2 star
3
1 star
0
Otter Mercator Solingen K55 Black Cat Knife German, Carbon Steel, Army Issue
rated 5 stars out of 5
Mike
 Los Angeles
Mar 25, 2026
Pros: Blade Material, Blade Sharpness, Ease of Opening, Handle Feel, Handle Material, Lock Ease of Use, Lock Type, Overall Quality, Weight
Cons: Pocket Clip, Sheath
My Favorite EDC
I own 7 knives. Some are more expensive. However, I like this the best. I bought one with a clip also. The quality is excellent, it’s thin, and looks great. In fact, it’s the best looking EDC. The style is unsurpassed. The historic value is interesting, yet it’s priced beyond competitive. I have knives for $300. They just don’t compare..
Otter Mercator Solingen K55 Black Cat Knife German, Carbon Steel, Army Issue
rated 5 stars out of 5
Ly
 San Francisco
Dec 05, 2025
Pros: Blade Sharpness, Ease of Opening, Handle Feel, Handle Material, Lock Ease of Use, Lock Type, Overall Quality, Weight
Cons: None
Pleased
Slim, light EDC. Nice smooth and solid feel. Very light in pocket and have wondered which pocket it's actually in.
Otter Mercator Solingen K55 Black Cat Knife German, Carbon Steel, Army Issue
rated 5 stars out of 5
Eddie B
 Milford ct
Nov 24, 2025
Pros: Blade Material, Blade Sharpness, Ease of Opening, Handle Feel, Handle Material, Lock Ease of Use, Lock Type, Overall Quality, Weight
Cons: None
K5 Cat
Order was confirmed, shipped and received promptly. Knife was as described. Knife was in excellent condition. Knife center is consistent in their operation. EB
Read all 87 Reviews »