Modular bore polishing devices, and associated systems and methods

A tool system comprising an arbor portion and one or more interchangeable head portions, wherein the arbor portion comprises:

• a body portion;
• a media collection element carried by the body portion;
• a rotation mechanism carried by the body portion and positioned to rotate the media collection element relative to the body portion;
• and
• a media distribution element.

A tool system for polishing a bore, the tool system comprising:

• a first rotatable shaft;
• a second rotatable shaft;
• a media collection element connected to the first rotatable shaft and positioned to rotate when the first rotatable shaft rotates;
• a head portion connected to the second rotatable shaft and positioned to rotate when the second rotatable shaft rotates;
• and
• a transmission connecting the first rotatable shaft to the second rotatable shaft, wherein the transmission causes the second rotatable shaft and the head portion to rotate slower than the first rotatable shaft.

A tool system for polishing a bore, the tool system comprising an arbor portion and a head portion, wherein:

• (a) the arbor portion comprises:
• a body portion;
• an arbor driveshaft positioned in the body portion and rotatable relative to the body portion;
• and
• a rotation mechanism carried by the body portion and positioned to rotate the arbor driveshaft relative to the body portion;
• (b) the head portion comprises:
• one or more media distribution regions positioned to receive abrasive paper;
• at least one outbound media channel extending from a corresponding media distribution region of the one or more media distribution regions to a first opening at an exterior perimeter of the head portion;
• at least one inbound media channel extending from a second opening at the exterior perimeter of the head portion, to a media collection region;
• and
• one or more media collection elements positioned in the media collection region;
• wherein the one or more media collection elements are operatively connected to a rotatable input element supported by a body of the head portion;
• and
• (c) the head portion is directly or indirectly connectable to the arbor portion, wherein when the head portion is connected to the arbor portion, rotation of the arbor driveshaft causes the one or more media collection elements to rotate.