Patent ID: 6846231
Filing Date: 2005-01-25
Classification: B24B,B25F

Abstract:
1. A sharpening attachment for a rotary hand tool having an output shaft with a tool bit holder and a housing with a nose portion including an opening in which the output shaft is located, and a sharpening bit mounted in the tool bit holder for engaging a work surface, said attachment comprising: a body portion having a rear end for mounting to the housing of the hand tool, said body portion having an internal opening aligned with the output shaft and sized to receive and permit rotation of the tool bit holder and a generally cylindrical sharpening bit, with at least a portion of the sharpening bit being exposed forwardly of said rear end for engagement with a tool member to be sharpened; a jaw portion attached to said body portion and extending forwardly along one side thereof and having a support surface for holding the tool member relative to the sharpening bit, said surface lying in a plane at an acute angle relative to the sharpening bit; an extension attached to said body portion and extending forwardly thereof to a point that is coextensive with at least a major portion of the exposed portion of the sharpening bit to thereby define a protective guard; said extension being on the side opposite said jaw portion, said extension extending beyond the end of the sharpening bit and having a transverse end portion that extends to the opposite side thereof, said end portion having a gap guide surface for contacting the tool member.