How does the Rockwell Hardness Scale work?
One of our proprietary processes is heat-treating the blade to achieve an appropriate hardness. If the blade is too soft, it will not hold an edge. If it is too brittle, it will not withstand pressure, impact and torque and is harder to resharpen. The Rockwell tester presses a diamond tip into the steel to determine its hardness, which it indicates on a numeric scale. We have worked diligently at testing to achieve what we feel is the best degree of hardness for each type of knife, depending on its intended purpose. In general, the standard hardness range we use for our blade steels is 58-61. For more information, please refer to our Heat-Treating section.
The Rockwell Hardness Scale or “Rc” is a way for us to test the hardness of our blades. Our groundbreaking methodology for heat-treating or tempering metal allows us to make blades to a certain hardness based on how the knife will be used. In general, the standard hardness range for our blade steels is Rc 58-61. This range produces a strong blade with good edge retention that is easy to re-sharpen.
