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Extrema Ratio has responded to requests from hunters to develop a knife to fill their particular needs. This version of the Doberman Africa is a shorter, lighter weight version of the Doberman IV Africa. The Doberman IV Africa S is a great choice for all hunters, not just professional hunters. It is “loaded with extras” such as a diamond sharpener and stainless steel marlin spike. Plus a choice of two interchangeable handles. It is protected by a handsome handmade, Italian leather sheath.


A high-quality stainless steel made by Bohler is used for the Doberman IV Africa S's blade. The steel has been enriched with chromium, vanadium, molybdenum, and cobalt. Satin finish. This blade will hold an edge and is corrosion resistant.


The Doberman IV Africa S comes equipped with two handles. One is Santos Rosewood and the other one is Forprene. You can easily change the handle depending upon your need. Santos Rosewood is fine-textured, dense, and non-porous. Forprene is a high-quality plastic that has excellent resistance to the elements and to chemicals; it provides a good grip even with wet hands.


The Doberman IV Africa S sheath is completely handmade in Italy. This strong leather sheath is brown with a front pocket holding an Extrema Ratio diamond sharpener. On the side is a pocket for the marlin spike. Both the diamond sharpener and the stainless steel marlin spike have lanyard holes with attached leather thongs. You can carry this knife on a belt up to almost three inches (mm 76.2) in width. There is a hard inner liner that keeps your Doberman IV Africa S from damaging the leather sheath. A leather thong on the bottom of the leather sheath is provided to anchor the sheath to your leg.


The Extrema Ratio Doberman IV Africa S is a beautifully designed, high-quality knife created especially for hunters' needs but definitely not limited to “hunters only”. The handmade Italian sheath provides an exceptional way to carry and display this excellent knife. Style combined with function – a great addition to your collection whether or not you are a hunter. Rugged. Impressive.

Length of Knife: mm 293.88 (11.57 inches)

Blade Length: mm 142.24 (5.60 inches)

Total Length of Knife and Sheath: mm 330.20 (13.00 inches)

Handle Length: mm 139.70 (5.50 inches)

Weight of Knife: g 328.85 (11.60 ounces)

Weight of Knife and Sheath: g 524.47 (1pound 2.5 ounces)

Blade Thickness (Widest Part): mm 6.35 (0.25 inches)

Blade Steel: Bohler N690 cobalt stainless steel*

Blade Hardness: Rockwell 58 HRC

Grinding: Flat grind

Serrations on Blade: No

Lanyard Holes: Yes – on both the leather sheath and the knife

Handles: Santos Rosewood and Forprene**

Sheath Material: High-quality leather and handmade in Italy

MOLLE Compatible Sheath: No

Window Breaker: No


* The blade is made with N690 cobalt stainless steel; a high performance steel with excellent cutting and sharpening characteristics. This steel is also used in the butchering industry and to make surgical instruments.

** Forprene (NATO Mil-Spec elastomer) has extreme temperature and moisture resistance.

Availability: Usually ships in 2-3 business days

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