Patent ID: 7444914
Filing Date: 2008-11-04
Classification: B23D,B27B,F16D,Y10T

Abstract:
1. An apparatus comprising: a saw blade; and a disk configured secured to a face of the saw blade, the saw blade having a first bore of a first transverse dimension configured for concentric engagement with a first size arbor, to substantially maintain concentricity of the first bore with the first size arbor during operational rotation about its central axis; the disk having a second bore of a second transverse dimension configured for concentric engagement with a second size arbor, to substantially maintain concentricity of the second bore with the second size arbor during operational rotation about its central axis; the second bore configured for concentric disposition with the first bore; the second bore being disposed within a knockout portion of said disk; said knockout portion being removable for enlarging an inner transverse dimension of said disk beyond that of the first bore; the first and second transverse dimensions being within an ISO H7 standard tolerance; wherein the disk is configured for mounting the second bore on the second size arbor, and alternatively for removing the knockout portion to mount the first bore on the first size arbor.