Patent ID: 8146891

Claim:
A powered impact tool utilized at only one side of a host material for removal of various sized fasteners from the host material comprising: a tool housing including a chamber operatively associated with an actuator assembly, wherein said chamber is a cylinder; and interchangeable driver assemblies including a plurality of interchangeable drive pins and a guide portion having a bore segment and a plurality of interchangeable guide elements each selectively adapted for use with a different one of said plurality of drive pins, each of said plurality of drive pins having first and second ends, said first ends of said plurality of drive pins each configured as a piston slidably movable in said cylinder, said second ends each having a substantially constant diameter selectively adapted for use in removing various sized fasteners and with each of said second ends having at least one of a different diameter and a different length from any other second end of said plurality of drive pins, any selected one of said plurality of drive pins mountable with said first end thereof in said chamber of said tool housing and movable therein responsive to said actuator assembly for impacting a fastener to be removed, said guide portion releasably maintained at said tool housing and in communication with said chamber, a selected one of said plurality of guide elements slidably mountable through said bore segment for receipt therethrough of said second end of said selected one of said plurality of drive pins, said guide elements slidable into and out of said bore segment of said guide portion independent of operation of said actuator assembly.