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Production

From state-of-the-art manufacturing to advanced materials, customers rely on Extrema Ratio for products that provide technology with an edge.

Laser cutting of a BÖHLER N690 steel sheet (thickness: 0.11 inches)

Laser-cut steel sheet showing MF3 INGREDIOR blade shapes

Superficial grinding of Fulcrum II T components

Dry milling of a Fulcrum S blade

Deformation check performed on MF3 INGREDIOR blade

SHRAPNEL OG blades during heat-treatment

Vibration finishing of various blades

N.K.1 hole beveling

Since 1997, Extrema Ratio has been committed to making unique designs at quality levels that rival custom, hand-made knives. Today, each knife (best hunting knife, tactical pocket knife, kitchen set knife, combat knives, military knives) crafted by Extrema Ratio is hand-finished and hand-sharpened by craftsmen dedicated to creating the very best possible. Each knife features specially designed blades for strength and superior performance and that’s just one reason to trust Extrema Ratio name. At Extrema Ratio, each knife means Company Perfection.

Preparing folding knife components for CNC process

Anticorodal aluminum bars for BF1 handle production

CNC processing of RESOLZA knives

CAD-CAM programming for MF1 BC handle

CNC processing of BF1 handle

Quality control on BF line screw turning process

Handmade finishing process of COL MOSCHIN blade

Sharpening process of LANDING FORCE titanium blade

Production From state-of-the-art manufacturing to advanced materials, customers rely on Extrema Ratio for products that provide technology with an edge. At Extrema Ratio we have a skilled and experienced work force capable of performing many of the extra hand operations that go into the making of our products. The Extrema Ratio cutlery factory is unique. It is full self-contained. In all these years Extrema Ratio combined the uniformity and production volumes of industrial automation with the high quality and attention to detail of hand finishing. We do most of the main production processes in-house: from grinding and assembly and hand finishing our products. These steps insure that Extrema Ratio knives are of excellent quality and a real value for the end user.

Sandblasting process of MF0 handle

Interim phase of the oxidation process for RESOLZA blade

Preparing BF2V handles for the anodization process

Assembling and setting of BF2 V

Handmade polishing of Suppressor 30° G.I.S. special box

Laser engraving on BF1

Workers during assembly and quality control process

The warehouse

It is in this process that rests the difference between mass production and handcrafted production, which is the only way to guarantee that each knife is unique.

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