Knife Sharpening Techniques Knife Sharpening : Knife Sharpening: Whetstones Posted on April 30, 2017 by enginejuan It’s a good idea to have a two-sided whetstone for sharpeing your knives. Learn how to sharpen knives using a whetstone in this free tools video. Expert: Thomas … source Best Knife Fighting Techniques – Knife Self-Defense How To Sharpen A Knife – Gordon Ramsay