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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.
This binding is great for annual reports, owners' manuals and software manuals. Wire bound books are made of individual sheets, each punched with a line of round or square holes on the binding edge. This type of binding uses either a 3:1 pitch hole pattern with three holes per inch or a 2:1 pitch hole pattern with two holes per inch.
A spiral bound notebook. Coil binding, also known as spiral binding, is a commonly used book binding style for documents. This binding style is known by a number of names (some trademarked) including spiral coil, color coil, colorcoil, ez-coil, plastic coil, spiral binding, and coilbind.
English: Common hole patterns used in ring binders and hole punches, including personal organizers. Polski: Układy otworów w segregatorach i dziurkaczach, z uwzględnieniem najpopularniejszych organizerów
A variety of hole patterns are in use for ring bindings. In much of the world, two-hole and four-hole punches consistent with ISO 838 are the norm. In the US, the three-hole punch is most common. See § Standards. There are other binding techniques which use hole punching. Coil binding uses a spring-like coil, threaded into the punched holes.
This feature causes the tap to continuously break the chip and eject it forward into the hole, preventing crowding. Spiral point taps are usually used in holes that go all the way through the material, so that the chips can escape. Another version of the spiral point plug tap is the spiral flute tap, whose flutes resemble those of a twist drill ...