Through hole creation aid

Abstract

As shown in the reference cross-sectional view during use, this article is an auxiliary tool for maintaining a state in which a hole saw blade 12 is in contact at a right angle with a workpiece 41 to be drilled, such as a plate material. As shown in the reference cross-sectional view during use, by inserting a hole drilling auxiliary rod 21 into an axial hole 11 of the hole saw, the hole saw can be rubbed up and down with the inner wall of the axial hole 11 in contact with the outer surface of the auxiliary rod 21, and a through hole 43 can be made in the workpiece 41 while maintaining the hole saw blade 12 in contact with the workpiece 41 at a right angle. This article is used in a state in which the workpiece 41 and the bottom surface of the attachment portion 22 are bonded 31 (specifically, with double-sided tape 32 as shown in reference cross-sectional view during use 2) and fixed to each other, as shown in reference cross-sectional view 1 during use.

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