grouter
/ˈɡraʊtər/Definitions
1. noun
a tool used for routing or cutting grooves, such as a hand tool used in woodworking, or a mechanical device used in the manufacture of plastic or other materials.
“The carpenter used a grouter to make precise cuts in the wooden panel.”
2. verb
to cut or rout a groove or channel in something, such as wood or plastic.
“The machine grouted a series of grooves in the plastic sheet.”