US 12,403,538 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 Jul. 25, 2024, as Appl. No. 18/783,817.
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 18/783,817 is a continuation of application No. 18/606,157, filed on Mar. 15, 2024.
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 2024/0375193 A1, Nov. 14, 2024
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)] 11 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 first surface and a second surface having a first portion and a second portion, the second portion extending between the first surface and the first portion of the second surface, the gullet extending through the first end of the sidewall, and
a support aperture formed in the sidewall, the support aperture entirely surrounded by the sidewall and having a parallelogram shape with a first side, a second side, a third side, and a fourth side, the first side of the support aperture being parallel with the second portion of the second surface of the sidewall, the support aperture positioned closer than the second portion of the second surface of the sidewall to the second end, at least one of the first side, the second side, the third side, and the fourth side oriented oblique to the rotational axis;
a cutting tooth coupled to the first end of the sidewall adjacent the second surface of the gullet; and
an end cap coupled to the second end of the sidewall,
wherein the first and second sides of the support aperture are parallel, and
wherein the third and fourth sides of the support aperture are parallel.