- subland twist drill
- nMECH ENG broca helicoidal multidiámetro f
English-Spanish technical dictionary. - London, © Routledge. 1997.
English-Spanish technical dictionary. - London, © Routledge. 1997.
Drilling — For other uses, see Drilling (disambiguation). Drilling is a cutting process that uses a drill bit to cut or enlarge a hole in solid materials. The drill bit is a multipoint, end cutting tool. It cuts by applying pressure and rotation to the… … Wikipedia