The principle of a screwdriver The working principle of a screwdriver is the wheel axle principle, which means that force acts on the wheel. When the ratio of the wheel radius to the shaft radius is larger, it saves more effort,【Read More】

A screwdriver is one of the essential tools for every household, specifically used to tighten screws and is widely used. A screwdriver can be considered a simple tool in handicrafts, with a blade and a handle, but its invention has epoch-making significance. In the 3rd century【Read More】

The principle of a screwdriver The working principle of a screwdriver is the wheel axle principle, which means that force acts on the wheel. When the ratio of the wheel radius to the shaft radius is larger, it saves more effort, so a thicker screwdriver is more labor-saving to u【Read More】