What type of motion characterizes a tool primarily used for drilling?

The primary characteristic of a tool used for drilling is rotational motion. Drilling tools, such as drill bits, are designed to rotate around their axis while being pressed against the material being drilled. This rotational action allows the sharp edges of the drill bit to penetrate and remove material, creating a hole in the surface.

In contrast, slicing, trimming, and chiseling involve different types of motion. Slicing typically refers to a linear or sliding motion used in cutting materials, while trimming involves cutting away excess material, usually at the edges, through a similar linear movement. Chiseling involves a percussive, hitting action to carve or shape materials, focusing on removing small pieces or chips rather than creating holes. The unique rotational motion of drilling tools is what distinctly defines their function and effectiveness in creating cylindrical openings in various materials.