noun
back saw; tenon saw; saw with a spine
A woodworking saw with a stiffened spine along the back, used for precise cuts such as tenons and dovetails. The cross-reference to 胴付鋸・どうつきのこ suggests a shorter reading variant.
See also: 胴付鋸 (どうつきのこ)
胴付き鋸は、ほぞ穴を切るときに使います。
A back saw is used when cutting mortises.
この胴付き鋸は刃が薄くて、細かい作業に向いている。
This back saw has a thin blade and is suited for fine work.
Shorter reading variant of the same tool; どうつきのこぎり is the fuller, more common reading.
Compound of 胴付き (dōtsuki, 'with a body/spine') + 鋸 (nokogiri, 'saw'). The name describes the reinforced spine characteristic of this type of saw.