Extrema Ratio

Extrema Ratio Knives are built incredibly strong and are masterfully engineered. The knives manufactured by Extrema Ratio of Italy are in a class by themselves. Their designs are totally unique. The materials used in their manufacturing are cutting edge and unique. Because the best materials are used they are not cheap, but you do get your monies worth.

Display: Grid List
Show:
Sort By:

I must say that the service from the fine folks at Oso Grande Knives are the kind of personable professionals that any company would be proud to call a part of their family. I am delighted with my purchase and equally with the high level of customer care from Oso Grande Knives.
-Gordon O - Upland, CA

Read more Testimonials

Shop by Brand

Cart Contents

Your cart is currently empty

Subtotal: $0.00

View Cart & Checkout

©Copyright 1999-2025 OsoGrandeKnives.com All rights reserved.

  • WE ACCEPT:
  • american-express
  • discover
  • visa