Portable multi -purpose fastening tool

The utility model discloses a portable multi -purpose fastening tool, including being hollow structure's the appearance nanotube and the independent tool bit of a plurality of different head forms, independent tool bit upper end is equipped with the polygon prism, be equipped with the recess on the polygon prism, hold nanotube along its axial set up can with the through -hole of polygon prism adaptation, a plurality of independent tool bits are placed in the through -hole that holds nanotube, it is equipped with locking stop gear to hold the nanotube lower extreme, locking stop gear can lock independent tool bit with the recess cooperation on the polygon prism. This instrument is at the independent tool bit of a plurality of different head forms, the independent tool bit of different head forms all can with hold nanotube adaptation and locking, can realize that a ware is multi -purpose, have the characteristics of convenience, variety, pluralism and simplification, need be with the help of any appurtenance or