US 12,403,537 B2
Hole saw
Max R. Sawa, Palatine, IL (US); Geoffrey R. Piller, Grafton, WI (US); Kenneth D. Peterson, Little Suamico, WI (US); Travis J. DuMez, Port Washington, WI (US); and James Ernest Pangerc, Pewaukee, WI (US)
Assigned to MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed by MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed on Mar. 15, 2024, as Appl. No. 18/606,157.
Application 18/065,305 is a division of application No. 16/910,166, filed on Jun. 24, 2020, granted, now 11,559,840, issued on Jan. 24, 2023.
Application 16/910,166 is a division of application No. 15/863,253, filed on Jan. 5, 2018, granted, now 10,730,119, issued on Aug. 4, 2020.
Application 18/606,157 is a continuation of application No. 18/065,305, filed on Dec. 13, 2022.
Claims priority of provisional application 62/443,317, filed on Jan. 6, 2017.
Prior Publication US 2024/0217008 A1, Jul. 4, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. B23B 51/04 (2006.01)
CPC B23B 51/0467 (2022.01) [B23B 51/0466 (2013.01); B23B 51/0426 (2013.01); B23B 2260/072 (2013.01); Y10T 408/895 (2015.01)] 20 Claims
OG exemplary drawing
 
1. A hole saw movable about a rotational axis in a cutting direction to cut into a workpiece, the hole saw comprising:
a cylindrical body including
a sidewall having a first end and a second end opposite the first end,
a gullet formed in the sidewall between a leading surface, a trailing surface, and a linear bottom surface of the sidewall, the gullet extending through the first end of the body, and
a support aperture formed in the sidewall, the support aperture entirely surrounded by the sidewall, at least one side of the support aperture being parallel to the linear bottom surface of the sidewall, and an entirety of the support aperture being positioned closer than the linear bottom surface of the sidewall to the second end of the sidewall;
a cutting tooth coupled to the first end of the sidewall adjacent the gullet; and
an end cap coupled to the second end of the sidewall.