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.
Extrema Ratio S.R.L. Via Traversa delle Ripalte,72/78 | 59100 Prato (PO) Italy | P.I.02481870976
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