teriku kujunduselement – lõikeservast algav ja esitahuga külgnev pind, mis on suunatud töödeldud pinna poole (vt lõikeserv, peatagatahk, abitagatahk; vrd esitahk), the end surface of a tool that is adjacent to the cutting edge and below it when the tool is in a horizontal position, as for turning; the surface(s) of a tool over which the surface produced on the workpiece passes during machining (see: cutting edge, major flank, minor flank; compare: rake face)