How can you test the sharpness of a chisel?

Testing the sharpness of a chisel is best performed by observing how effortlessly it slices through wood. When a chisel is sharp, it should be able to cut through the material with minimal pressure applied. This characteristic reflects the effectiveness of the blade's edge and its ability to create clean, precise cuts.

Utilizing soft materials for testing sharpness can provide some indication, but it may not give a complete picture of the chisel's performance in real woodworking applications. The same is true for examining the chisel under a magnifying glass; while one might determine if there are visible nicks or deformities, this does not sufficiently assess its cutting ability. Measuring the angle of the chisel's edge could theoretically inform you about its intended use and performance, but does not directly test its sharpness in practical terms. Thus, slicing through wood effortlessly without the need for excessive pressure is the most reliable method to ascertain a chisel's sharpness in real-world applications.