Powered tools and interchangeable driver assemblies for removal of fasteners from a host material are disclosed. The tool includes a housing having a chamber operatively associated with an actuator assembly. Interchangeable driver assemblies may be provided that include a plurality of interchangeable particularly configured drive pins and a plurality of interchangeable guide elements, each guide element selectively adapted for use with a different one of the drive pins. The guide element has an elongate central passage therethrough, is receivable by a mount releasably maintained at the housing adjacent the chamber, and may be configured for slidable retention thereat. In such case, the guide element is biased toward a fully extended position and is slidable between the fully extended position and a retracted position.