What is the primary use of a utility knife (box cutter) in a shop setting?

UTILITY KNIVES (retractable box cutters) are general-purpose cutting tools designed for: DRYWALL — scoring through the paper face, snapping on the score line, then cutting the back paper; the preferred method for fitting drywall panels; CARDBOARD — cutting boxes and packaging; CARPET AND VINYL — cutting flooring materials to size using a straightedge guide; ROOFING MATERIALS — cutting shingles, felt paper, and membrane roofing; PLASTIC SHEETING — cutting vapour barriers, poly film, and thin plastic panels; INSULATION — cutting fiberglass batt and foam board insulation. NOT APPROPRIATE FOR: Metal (use a hacksaw, angle grinder, or tin snips); thick wood (use a saw); wire (use wire cutters/strippers — trying to cut wire with a utility knife risks hand injury and blade damage). SAFE USE: Always extend only as much blade as needed; cut away from your body; use a metal straightedge (not a wood or plastic ruler — the blade will cut into softer guides); retract the blade after each use; change blades when they dull (dull utility knife blades are more dangerous than sharp ones because they require more force and are more likely to slip); store with blade retracted.