counterbore in Russian
counterbore in Russian
зе́нкер
The cutter used to cut such a recess. (Also used, at less depth, for spotfacing.)
зенко́вка
The cutter used to cut such a recess. (Also used, at less depth, for spotfacing.)
цеко́вка
The cutter used to cut such a recess. (Also used, at less depth, for spotfacing.)