Jig saw and Reciprocating saw

Reciprocating saw and jig saw are semantically related. In some cases you can use "Reciprocating saw" instead a noun phrase "Jig saw".

Reciprocating saw noun - A portable power saw with a reciprocating blade; can be used with a variety of blades depending on the application and kind of cut; generally have a plate that rides on the surface that is being cut.

Jig saw and reciprocating saw are semantically related. Sometimes you can replace phrase "Jig saw" with "Reciprocating saw", this phrases are similar.