Patent ID: 8622665
Filing Date: 2014-01-07
Classification: B23B,Y10T

Abstract:
1. A rotary tool accessory comprising: a base; a circular wall extending upwardly from the base about a central axis, the circular wall including an inner face, an outer face and a circular rim extending between the inner face and the outer face, wherein the rim includes a centerline defining a circumference of the circular wall; a first cutting group including a second cutting group including a second gullet extending downwardly along the circular wall from the rim toward the base and inclined with respect to the central axis, wherein the second outwardly extending tooth is immediately adjacent to the second gullet and the second inwardly extending tooth is immediately adjacent to the second outwardly extending tooth and non-adjacent to the second gullet; and a first toothless expanse of the rim extending between the first cutting group and the second cutting group.