Sport, Military and Collectible Knives | Coltelleria Collini
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ExtremaRatio - Dobermann IV Tactical Black - Bohler S600 64HRC - knife
ExtremaRatio - Dobermann IV Knife - S600 - Tactical Black represents the evolution of the first and most classic Extrema Ratio model, the K1 DOBERMANN. Since 1997, the DOBERMANN model has undergone significant aesthetic and design changes, adapting to the evolution of tastes and trends while remaining true to the original designs. Versatility of use and structural resistance are the main characteristics of DOBERMANN IV S600, making it ideal for hunting, survival, camping, and military use.
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- Type: Tactical / Collection
- Blade Production: Italy
- Blade: Stainless steel S600 64hrc
- Blade Treatment: EXP DARK
- Handle: Forprene
- Blade Length: 185mm
- Blade Thickness: 6.3mm
- Total Length: 315mm
- Weight: 360g
- Sheath: Cordura with M.O.L.L.E attachments
- Packaging: Cardboard box with Extrema Ratio logos
The blade of the DOBERMANN IV S600, made from Böhler S600 steel, offers excellent hardness, wear resistance, and toughness, thanks to the high content of molybdenum, tungsten, and vanadium. The addition of cobalt promotes the formation of small carbides, further improving wear resistance. With a hardness of 64 HRC, it ensures long-lasting edge retention. The “EXP DARK” teflon coating protects the steel from oxidation.
DOBERMANN IV S600 features a green forprene handle with a glass-breaking tang. It comes with a green cordura thigh sheath, adaptable for both left and right-handed users and compatible with the M.O.L.L.E system.
ER-DOB-S600€352.46Only 1 leftOnly 1 left
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Sports, Outdoor, Tactical, and Collectible Knives: The Collini Selection
For over 50 years, Coltelleria Collini has been a reference point in Italy for the world of specialized cutlery. Since 1968, we have been selecting sports, outdoor, professional, and collectible knives, collaborating exclusively with official brands, historical manufacturers, and master artisans.
In this category, you will find thousands of original knives, chosen for demanding collectors, EDC, outdoor, and bushcraft enthusiasts, as well as professional operators who require reliability, quality materials, and consistent performance over time.
Military & Tactical Knives
Knives designed for heavy-duty and professional use, where robustness and reliability are paramount. We select world-leading brands such as Extrema Ratio, Zero Tolerance, Ka-Bar, and Cold Steel. Fixed and folding blades developed to withstand extreme conditions.
Sports & Outdoor Knives
From trekking to hiking, from bushcraft to everyday carry (EDC). Discover the Italian excellence of Fox Knives and LionSteel, the Nordic solidity of Fallkniven, and great classics like Opinel and Spyderco.
Collectible & Rare Knives
Custom, vintage, limited edition, and discontinued knives. Through our Approved program, we acquire, evaluate, and certify private collections, offering our customers access to rare, display, and investment-grade blades.
Why choose Coltelleria Collini since 1968
We are not just an e-commerce site, but a historic cutlery shop with direct experience on the products we offer. Buying from us guarantees:
- Certified Originality: we are official dealers for all brands we carry.
- Real Stock with fast shipping.
- Qualified Assistance and technical advice before and after sales.
Knives FAQ
There is no absolute "best" brand, but specific leaders for each use. For tactical and professional use, Extrema Ratio and Zero Tolerance are top tier. For outdoor and EDC, Fox, LionSteel, Fallkniven, and Spyderco excel.
Yes, buying sports and collectible knives online is generally legal for adults. However, laws regarding carrying and transporting knives in public vary significantly by country. Always check your local regulations.