Ground set hole saw
AssigneeThe M.K. Morse Company
InventorsChandra Sekhar Rakurty, Peter Christopher Vandervaart
Life of this patent
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Abstract
A hole saw with a substantially cylindrical body, a center axis of rotation, an inner surface, and an outer surface. A cutting edge defined by a plurality of ground set teeth arranged in a pattern includes a first group of teeth oriented at angles toward the center axis of rotation intermixed with a second group of teeth oriented at an angle away from the center axis of rotation. The teeth angled away from the center axis of rotation are oriented at substantially the same angle and the teeth angled toward the center axis of rotation are oriented with each progressive tooth of the first group have an increasing angle relative to a prior tooth of the first group.
Claims12
A hole saw comprising:
- a substantially cylindrical body containing a center axis of rotation, defined by an inner surface and an outer surface;
- and
- a plurality of ground set teeth defining a cutting edge, the plurality of teeth arranged in a pattern defining a first group of teeth oriented at angles toward the center axis of rotation, and a second group of teeth oriented at an angle away from the center axis of rotation;
- where the second group is intermixed with the first group,
- where the teeth angled away from the center axis of rotation are oriented at substantially the same angle;
- and
- where the teeth angled toward the center axis of rotation are oriented with each progressive tooth of the first group having an increasing angle relative to a prior tooth of the first group.
A hole saw comprising:
- a substantially cylindrical body having a pair of sides extending substantially concentric to each other, the sides having an inner surface and an outer surface;
- a center axis of rotation;
- a cutting edge extending from an end of the body;
- a plurality of ground set teeth defining the cutting edge, the teeth arranged in a pattern of inwardly and outwardly extending teeth, where a first set of teeth extends inwardly toward the center axis of rotation at a progressively increasing inner distance;
- and
- a second set of teeth extending outwardly of the body away from the center axis of rotation, all of the teeth of the second set of teeth extending the same outer distance from the center axis of rotation, the teeth of the second set of teeth is intermixed with the first set of teeth.
Dependencies are inferred from the claim text.