The Knife Making AdvisorCheck out what's new on this site and the world of knifemaking!The Rockwell Hardness Scale- January 17, 2006 Many knife manufacturers indicate the Rockwell hardness of their knife blades. This measurement indicates the hardness of the steel used. The Rockwell hardness testing is done by a gauge that forces a diamond-tipped probe, often called a cone, into the metal being tested. The depth of penetration for a given amount of force is measured and converted to a scale of relative hardness. This scale is called the Rockwell C scale. The hardness rating is usually abbreviated Rc. There are other...http://www.knife-making-supplies.net/rockwell-hardness-scale.html How To Sharpen a Knife- January 17, 2006 What's the sense in carrying a knife unless the knife you carry is sharp Sharpening a blade is not rocket science, but a lot of knife owners act like it might be. If you have a favorite knife and you keep it fairly sharp, you should be able to put an edge back on the blade in less than five minutes. Sometimes, in less than one minute! By far, the larger bench stones are easier to use than the smaller stones. The drawback is that they're not as portable. However, if you plan to do a lot of...http://www.knife-making-supplies.net/how-to-sharpen-a-knife.html Knife Hardening and Tempering- January 17, 2006 When we talk about hardening knife steel, there are two principal processes to consider. One is "hardening" and the other is "tempering." It's important to understand that we're talking about steel that has enough carbon in its alloy to harden by the methods laid out here. Steel with too little carbon can only be hardened by adding carbon in a case-hardening process. Each steel alloy has a different temperature at which it must be heated for ideal hardening. The goal of hardening is to produce.http://www.knife-making-supplies.net/hardening-tempering-knife-blades.html |