The crossword clue "Mr. Mason's chilly cutters? (4,7)" is answered by the phrase [cold chisels](javascript:void(0)). This phrase perfectly fits the clue both in word length and meaning. A cold chisel is a tool used by masons for cutting stone or metal without heating it, thus "chilly cutters" cleverly hints at this tool. "Mr. Mason" refers to the profession that uses such tools, combining with "chilly" (cold) and "cutters" (chisels) to form a clever cryptic clue answer. Cold chisels are hardened steel tools used for cutting unheated materials, widely recognized in construction and metalworking contexts.