also: いとノコ
noun
fretsaw; coping saw; jigsaw
A thin-bladed saw used for cutting curves and intricate shapes in woodworking.
糸鋸で曲線を切るのは難しい。
Cutting curves with a fretsaw is difficult.
彼は糸鋸を使って木のパズルを作った。
He made a wooden puzzle using a coping saw.
Compound of 糸 (ito, 'thread') and 鋸 (noko, 'saw'), referring to the thin, thread-like blade.