Patent ID: 7086314

Claim:
A screwdriver, comprising: (a) an apertured core; (b) a bit storage member rotatable with respect to said core; (c) a plurality of bit storage spaces provided within said bit storage member; (d) a push rod slidably movable through said core; (e) a push rod having a means for magnetically attracting on a forward end of said push rod; (f) a hand grip on a rearward end of said push rod; (g) a magnetic bit changing arm movable toward a selected one of said bit storage spaces; (h) an apertured shaft extending from a forward end of said core and in coaxial alignment with said push rod; wherein: (i) said push rod is slidably movable through said core and through said bit storage member between extended and refracted positions; (ii) when said push rod is in said extended position: (1) said means for magnetically attracting is located rearwardly of said bit storage spaces; (2) said core is rotatable with respect to said bit storage member to position said bit changing arm adjacent said selected one of said bit storage spaces; (3) said bit changing arm is extended toward said selected one of said bit storage spaces, magnetically attracting to said bit changing arm a tool bit located in said selected one of said bit storage spaces; (iii) during movement of said push rod from said extended position into said retracted position: (1) said core is not rotatable with respect to said bit storage member; (2) said push rod pushes said bit changing arm and said magnetically attracted tool bit away from said selected one of said bit storage spaces and into coaxial alignment with said shaft; (3) said push rod and said means for magnetically attracting is pushed forwardly toward a rearward end of said magnetically attracted tool bit, magnetically attracting said tool bit onto said push rod; and, (4) said push rod is pushed forwardly, pushing said tool bit forwardly into said shaft until said tool bit protrudes through an open forward end of said shaft.