【Auto / Manual Mode】 The rivet nut tool rivet nut kit features auto and manual model. release the switch after the riveting is completed, and the rivet will automatically exit. 【Portable & Labor Saving】 Compared with manual exhausted and inexact riveting, you can operate this rivet tool with one hand, and the riveting is tight and accurate Rivet & Rivet nut Two functions, One machine can be used for two purposes.