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CRKT knife accessories can help return your blade to its original precision and power. Over time and many uses, even a rough and tumble Columbia River knife can become dull or ineffective, especially when you're cutting tough materials. That's why these knife accessories are so good to carry with you; with a knife accessory by Columbia River, your edge will always be keen and your blade will always shine. Diamond knife sharpeners from Columbia River Knife and Tool can hone any material, and they're small enough to carry with you. You can even purchase a knife sharpener with a carrying case, so you can keep your knives working at their best, even on the road. Even the best knife needs sharpening once in a while, which is why you need a Columbia River Knife & Tool knife accessory.