lõikuri (treilõikur, puur, frees jt) esi- ja tagatahu ühinemisel kujunev serv mis on lõiketöötlemisel toorikuga kontaktis (vt esitahk, tagatahk), the leading edge of a cutting tool (such as a lathe tool, drill, or milling cutter) where a line of contact is made with the work during machining (see: rake face, flank)