driving shaft 15 while a ring retainer as illustrated is particularly well suited for use with the device it should be appreciated that a number of screw packagings for maintaining the screw in the chambers could be employed such as for example a plastic or mylar spiral fitted around the body of the screw and configured to snugly fit within the chambers to thereby maintain the screws in the chamber and yet break away when force is applied in addition retainers could be separately provided to a user of the device for mounting of screws thereon by the user in use insert 21 is removed from the device by pulling on grips 125 so that snaps 127 are released from flange 129 prepackaged screws or selected ones of single screws are then inserted into chambers 130 insert 21 is then reinserted into positioning mechanism 19 by aligning key 114 with slot 112 in rotatable cylinder 79 and forcing snaps 127 over flange 129 when fully loaded with screws a screw will automatically be aligned with engaging portion 25 of driving shaft 15 a user of the device will then position the aligned screw over a work surface by aligning the screw tip with the position on the work surface to which it is to be applied sighting the tip of the screw through slot 132 in insert 21 by pressing handle 13 downward toward the work surface thus compressing spring 66 as stabilizing shaft 17 moves rearward within handle 13 engaging portion 25 of driving shaft 15 will be.