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The Extrema Ratio Psycho 24 is a classic chef's knife. Mufti-purpose, it gives you an outstanding performance. Use it confidently to do the standard chores such as chopping, slicing, mincing, smashing, etc. as well as the heavier chores such as cutting through thick rind melons and squash. A kitchen essential.


The Psycho 24 chef knife's wide blade makes it ideal for scooping up your food to transfer it. Excellent weight and length for common food preparation chores. Has an interesting, eye catching laser engraving on the polished blade. Efficient; with a well-designed, gracefully curved blade that ends in a point. Full tang. Long, wide, and well-balanced. Very sharp.


The Psycho 24 handle is made of Forprene and has a “rubbery” feel. Comfortable to hold. It has the Extrema Ratio distinctive signature handle. It is an ergonomic handle design that gives you a firm grip. The Psycho 24 handle can be removed for cleaning and maintenance. Performs well with wet hands.


The Psycho 24 has a well-made, heavy-duty Cordura sheath. Has a removable belt strap. This sheath is only meant to provided maximum protection when the Psycho 24 is being carried or stored. This sheath protects the blade as well as your hands. Your knife must be made ready for food preparation after being in its sheath. Quality made in Italy.

Length of Knife (excluding extended tang): mm 419.10 (16.50 inches)

Blade Length (from handle to tip): mm 250.95 (9.88 inches)

Blade Length (sharpened area only): mm 241.30 (9.50 inches)

Total Length of Knife and Sheath (including extended tang): mm 488.95 (19.25 inches)

Handle Length (excluding extended tang): mm 116.33 (4.85 inches)

Weight of Knife: g 354.37 (12.50 ounces)

Weight of Knife and Sheath: g 521.63 (14.40 ounces)

Blade Thickness (widest part): mm 4.00 (0.16 inches)

Blade Width (widest section): mm 54.10 (2.13 inches)

Blade Steel: Bohler N690 cobalt stainless steel*

Blade Hardness: Rockwell 58 HRC

Grinding: Flat grind

Handle Material: Forprene**

Sheath Material: Heavy duty Cordura


* 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 has extreme temperature and moisture resistance.

01-1000-0408stgADVERTISED PRICE $339.00OUR PRICE $255.00
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