Definition
A power-driven saw with a narrow, fine-toothed reciprocating blade used to cut curves, irregular shapes, or internal cutouts in sheet metal, wood, plastic, and other thin materials. In aircraft maintenance, jigsaws are used for shaping repair patches, trimming skin sections, and cutting access openings.
Plain English
A small saw with a thin blade that moves up and down quickly. It's used to cut curves and detailed shapes that a straight saw can't make.
Context Anchor
Seen in aircraft maintenance, sheet-metal work, interior work, and repair procedures that require cutting a shaped opening or trimming a panel.
Derivation
The name comes from the verb 'to jig,' meaning to move up and down rapidly. The blade's quick reciprocating motion gave the tool its name.
Why Pilots Care
A pilot may see this term in maintenance descriptions or repair records. It matters because cutting aircraft parts requires the correct tool, careful control, and approved repair practices.
Analogy
A jigsaw is like a handheld saw for drawing with a blade: instead of only cutting straight across, it can follow a curved or shaped line.
Intuition Check
Do not read “jigsaw” here as a puzzle. In this context, it means a cutting tool used to make shaped cuts in aircraft materials.
Example Sentence 1
The mechanic used a jigsaw to cut a curved repair patch from a sheet of aluminum.
Example Sentence 2
After marking the cut line, he fitted a fine-tooth blade in the jigsaw to avoid damaging the underlying structure.