What does the term "shear force" commonly apply to in everyday tools?

The term "shear force" commonly applies to tools like scissors and tinsnips because these tools are specifically designed to cut materials by applying a force that causes one part of the material to slide past another. In the case of scissors and tinsnips, the cutting action occurs when the blades move relative to each other, creating a shear force at the edge of the material being cut. This force effectively overcomes the material's internal resistance, allowing for a clean and effective cut.

Other tools mentioned, like hammers and mallets, impart impact or compressive forces rather than shear forces. Wrenches and pliers exert torque and grasping forces to turn or hold objects rather than causing shear. Drills and saws function primarily by removing material through rotational or linear motion, focusing on different types of forces instead of shear. Thus, scissors and tinsnips are the quintessential examples of tools that utilize shear force for their primary function.