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Paper cutters are also used for cutting thin sheet metal, cardboard, and plastic. A variant of this design uses a wheel-shaped blade mounted on a sliding shuttle attached to a rail. This type of paper cutter is known as a rotary paper cutter.
Used extensively in bookbinding, a board shear is a large, hand-operated machine for cutting board or paper. Like scissors, a board shear uses two blades to apply shear stress exceeding the paper's shear strength in order to cut. The stationary blade forms the edge of the cutting table, with the moving blade mounted on a cutting arm.
Paper knives are used for cutting open the pages of hand-produced books where the folding of printed sheets creates some closed edges that require severing of the paper before reading. [1] Letter openers "evolved" from paper knives into longer, blunter blades for the sole purpose of opening envelopes.
Dressmaker's shears have a long blade, typically 7–10 in (18–25 cm), for cutting out fabric. Blades are tapered, with one pointed and one rounded tip; the blunt tip prevents fabric from snagging on seams and threads. Blades have a "knife edge": the top blade is set at an acute angle which allows the scissors to cut through fabric easily.
OLFA Corporation (オルファ株式会社, Orufa Kabushiki-gaisha) is a Japanese manufacturer of utility knives, founded in 1956 in Osaka, Japan.The name is derived from the Japanese words oru (折る, bend and break) and ha (刃, blade).
Some blades cut through the material while others crush the material against a hard roll. Those are similar to knives. The cutting blades can be set to a desired width. Some machines have many blades and can produce a number of output rolls at once. The slit material is rewound on paper, plastic or metal cores on the exit side of the machine.
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