Patent ID: 9550287
Date: 2017-01-24
CPC Classifications: B25B,Y10T

Claim:
1. An installation tool for inserting a helical threaded insert into a tapped hole, comprising: a driving mechanism having an external tube, an internal tube movably inserted in the external tube, and a crank handle configured to rotate the internal tube forward relative the external tube for forcing the helical threaded insert into the tapped hole; at least one mandrel passing through the external tube and having a rear end detachably connected to the internal tube and a front lead end to be engaged with the helical threaded insert; and at least one head tube detachably connected to one end of the external tube and allowing the front lead end of the mandrel to pass through, the head tube having a cutout at a lateral side thereof, an alignment portion defined at a front end thereof, and a threaded hole defined through the alignment portion, the threaded hole being tapered from rear to front for reducing a diameter of the helical threaded insert for smooth transition of the helical threaded insert into the tapped hole.