(Heb. kav, קִו, a line for measuring. as elsewhere rendered) is mentioned (Isaiah 44:13) among the tools of the carpenter (חָרִשׁ עֵצים, hewer of wood), the associated implements being the "line" (Heb. sered, ַֹשרֶד, probably a graver), the "plane " (Heb. maktsu'ah, מִקְצוּעָה, probably a chisel), and the "compass" (Heb, mechugah, מְחוּגָה, probably compasses). (See HANDICRAFT).