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Some 2-hole punches have an "888" marking on their paper guide, to assist punching all four holes into A4 paper. [ 5 ] Konica Minolta specifies that for European 4-hole arrangements, all holes should be 11 ± 1 mm from the nearest (i.e. long/spine) edge of the paper, [ 6 ] which is slightly at variance with ISO 838's specification of 12 ± 1 mm .
To bind a document, the user first punches holes in the paper with a specialized hole punch. Pages must be punched a few at a time with most of these machines. If hard covers are desired, they must be punched as well. In bulk applications, a paper drilling machine may be used. Then the user chooses a spine size that will match the document.
The punch and die themselves can have a variety of shapes to create an array of different shaped holes in the workpiece. Multiple punches may be used together to create a part in one step. Usually, the punch and die are close to the same dimensions, creating a sheared edge when they meet.
(The hole thus punched for a discbound loose leaf system is called “香菇孔” (“mushroom hole”) by KW·TriO.) A loose leaf system typically contains specially designed hole punches that can be used to punch holes on any common, standard-size paper so that they can be arranged into the loose leaf system. These hole punches are sold by ...
Paper-drilling machine. Paper drilling is a technique used in binderies for providing large quantities of paper with round holes. [1] The paper can be processed as loose leaves and in brochures (stitched, perfectly bound). [citation needed] The holes can be drilled for storage purposes, such as filing, [1] or sometimes for decorative purposes ...
A punch is a tool used to indent or create a hole through a hard surface. They usually consist of a hard metal rod with a narrow tip at one end and a broad flat "butt" at the other. When used, the narrower end is pointed against a target surface and the broad end is struck with a hammer or mallet , causing the blunt force of the blow to be ...