What Is an Electric Hole Puncher?

The hole opener is also called a hole saw or hole saw, which refers to a special circular saw for processing circular holes in modern industry or engineering. It is simple and flexible to operate, convenient to carry, safe, and widely used [1] . Hole openers (cutters) are installed on ordinary electric drills, which can conveniently perform round holes, square holes, triangular holes, straight lines, etc. on any curved surface such as copper, iron, stainless steel, and plexiglass. Arbitrary cutting of the curve.

Hole punches have different hole diameters and specifications according to different size circles, and are divided into two types: standard hole punches and deep load hole punches.
The main parts of the hole opener are: support shank, spring, drill, etc. The support shank is a universal part. The hole finder with different hole diameters is equipped with two kinds of support shank. Above 32mm is a specification [3] .
Various specifications of the hole

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