ɐ pˈaʊdɚɹˈæktʃuːˌeɪɾᵻd tˈuːl pˌiːˌeɪtˈiː, ˈɔfən dʒənˈɛɹɪkli kˈɔːld ɐ hˈɪlti ɡˈʌn ɔːɹ ɐ ɹˈæmsɛt ɡˈʌn ˈæftɚ ðɛɹ mˌænjuːfˈæktʃɚɹɪŋ kˈʌmpəniz ɪz ɐ tˈaɪp ʌv nˈeɪl ɡˈʌn jˈuːzd ɪn kənstɹˈʌkʃən ænd mˌænjuːfˈæktʃɚɹɪŋ tə dʒˈɔɪn mətˈɪɹiəlz tə hˈɑːɹd sˈʌbstɹeɪts sˈʌtʃ ɐz stˈiːl ænd kˈɑːŋkɹiːt.
A powder-actuated tool (PAT, often generically called a Hilti gun or a Ramset gun after their manufacturing companies) is a type of nail gun used in construction and manufacturing to join materials to hard substrates such as steel and concrete.