Extrema Ratio · Code 04.1000.0106/S6/BLK-GRN

Fixed Blade Knife Extrema Ratio Tuscan S600 04.1000.0106/S6/BLK-GRN

★★★★★ 4,8 147 reviews Heureka verified
Extrema Ratio Tuscan S600 Green G10 EXP Dark is an extremely durable knife designed for situations where ordinary tools are not enough. It combines top-tier steel, robust construction, and tactical functionality into one package. It is a tool you can rely on regardless of the conditions. Free shipping.
Knives Fixed knives

Detailed product description

Impressive strength, extreme durability — ready for the toughest conditions.

Extrema Ratio Tuscan S600 Green G10 EXP Dark is a robust tactical knife designed for professionals and demanding users who need a reliable field tool.

This model builds on the proven Tuscan line and takes it further with an improved construction and the use of premium materials. The knife’s defining feature is its blade made from premium Böhler S600 steel, cryogenically hardened to 64 HRC, offering extreme resistance to wear and high stress.

The matte EXP DARK finish protects the blade against corrosion and eliminates reflections, which is a crucial advantage in tactical deployment. The ergonomic G10 handle in green ensures a firm and secure grip even in adverse conditions.

Included is a tactical Cordura sheath compatible with the MOLLE system and with the option of thigh attachment — maximum carry flexibility.

When you take the knife in hand, you immediately feel its robustness, balance, and the confidence it offers in every situation.

Full Tang construction

Cordura sheath, MOLLE compatible

The Tuscan model line represents a modern evolution of this brand’s tactical knives.

Key parameters

Overall length cca 12.05" (30,6 cm)
Blade length cca 6.57" (16,7 cm)
Weight cca 15.84 oz (~ 449 g)
Steel Böhler S600 - vysokorychlostní steel
Steel hardness cca 64 HRC
Handle G10 (green)
Blade thickness cca 0.24" (6 mm)
Blade finish EXP Dark
Blade shape Drop-point
Grind Flat Ground (plochý)
Production Italy

About Extrema Ratio

Extrema Ratio is an Italian brand specializing in the production of tactical and professional knives for the military, security forces, and outdoor enthusiasts.

Their products are known for extreme durability, precise workmanship, and an emphasis on functionality in real-world conditions.

Character and philosophy

Tuscan S600 EXP Dark is designed for users who demand maximum performance without compromise.

Böhler S600 high-speed steel with a high content of molybdenum, tungsten, and vanadium provides exceptional hardness, strength, and wear resistance. The presence of cobalt supports the formation of fine carbides, which increase edge longevity.

The drop-point blade with a flat grind offers versatile use — from heavier field work to precise cuts. The knife is optimized for everyday use as well as demanding operations where reliability is key.

The full tang construction ensures maximum strength and durability, while the ergonomic handle minimizes hand fatigue during prolonged use.

Key benefits

  • Extremely durable Böhler S600 steel – maximum service life and performance
  • Cryogenic hardening – higher hardness and durability
  • EXP DARK finish – corrosion protection and no reflections
  • Full tang construction – maximum strength
  • Ergonomic G10 handle – secure grip even in demanding conditions
  • Tactical MOLLE sheath – flexible carry options

Possible limitations

  • Higher weight (approx. 449 g) may not suit lightweight carry
  • Hard steel requires quality sharpening
  • Robust construction is not intended for delicate tasks

Maintenance and care

  • Clean and dry the blade thoroughly after use
  • Regularly check the edge and its condition
  • Avoid prolonged exposure to moisture
  • Keep the sheath clean and dry
  • Store in a dry environment

To maintain the maximum sharpness of the blade made from highly hard Böhler S600 steel, it is important to use a quality sharpening system that can handle extremely durable materials.

Thanks to this system, the blade will retain maximum cutting performance and long service life even under demanding use.

🛒 Available on our Moskito website.

Final verdict

Extrema Ratio Tuscan S600 Green G10 EXP Dark is an extremely durable knife designed for situations where ordinary tools are not enough.

It combines top-tier steel, robust construction, and tactical functionality into one package. It is a tool you can rely on regardless of the conditions.

Tuscan S600 – strength that stands up to every deployment. 🔥

Customer reviews

All 147 reviews →
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147 reviews · Heureka verified
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