Patent ID: 8360696

Claim:
An arbor for a small diameter hole cutter defining an outer diameter of less than 1¼ inches, an end portion defining an approximately central aperture, and at least one drive pin recess radially spaced relative to the central aperture, the arbor comprising: an arbor body including on an end thereof a connecting portion engageable with the central aperture of the hole cutter; and a drive member movably mounted on the arbor body including at least one drive pin radially spaced relative to the arbor body, and movable axially relative to the arbor body between engaged and disengaged positions, wherein in the engaged position, the at least one drive pin is receivable within the at least one drive pin recess of the hole cutter to rotatably drive the hole cutter with the arbor, wherein the at least one drive pin defines a first substantially flat surface arranged to engage and drive the at least one drive pin recess of the small diameter hole cutter.