Patent ID: 7736216

Claim:
A tool for moving an abrasive media, the tool comprising: a tool body; a platen having an exterior platen surface and a knob aperture that is formed through the exterior platen surface; a drive system housed in the tool body and configured to move the platen, the drive system including an output member with a first threaded portion; and a retaining knob that is received through the knob aperture in the exterior platen surface of the platen, the retaining knob having a knob portion and an attachment member, the knob portion having an exterior knob surface, the attachment member having a second threaded portion that is threadably coupled to the first threaded portion; wherein the platen surface and at least a portion of the knob surface are co-planar, and wherein at least one of a hook fastener and a loop fastener of a hook-and-loop fastener system is applied to the platen surface and the at least the portion of the knob surface.