The principle of screwdriver technology

The screwdriver takes advantage of how levers work when used to pry paint caps. The greater the distance from the power point to the fulcrum, the more labor-saving, so the long screwdriver is more labor-saving than the short screwdriver.

A screwdriver takes advantage of the working principle of an axle when it is used to turn a screw. The larger the wheel, the less effort, so using a thick-handled screwdriver is less labor-intensive than using a thin-handled screwdriver.