Patent ID: 8328474
Filing Date: 2012-12-11
Classification: B23B,Y10T

Abstract:
1. An arbor that is connectable to a quick change hole cutter including an end portion defining a first aperture and at least one drive pin recess radially spaced relative to the first aperture, the arbor comprising: an arbor body including a stop surface, and a hole cutter connecting portion extending axially from the stop surface and engageable within the first aperture of the hole cutter; and a drive member defining a second aperture that receives therethrough the arbor body and is configured to allow relative axial movement, but to prevent relative rotational movement, of the arbor body and drive member, wherein (i) the drive member further includes a first surface and at least one drive pin radially spaced relative to the second aperture and extending axially from the first surface; (ii) the connecting portion is receivable within the first aperture of the hole cutter to define a first engagement position; (iii) wherein the arbor is configured such that at least one of the arbor body and hole cutter is movable relative to the other between the first engagement position and a second engagement position to secure the hole cutter to the arbor body; and (iv) in the second engagement position: the arbor is configured such that, in the second engagement position, the stop surface of the arbor body is arranged to be in contact with the end portion of the hole cutter.