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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.
Whether you’re cutting paper figures or snipping loose threads, you’re going to want to cut with confidence. For precise cuts, choose a pair of scissors smaller than the average eight-inch ...
Paper cutters were developed and patented in 1844 by French inventor Guillaume Massiquot. Later, Milton Bradley patented his own version of the paper cutter in 1879. [1] Since the middle of the 19th century, considerable improvements to the paper cutter have been made by Fomm and Krause of Germany, Furnival in England, and Oswego and Seybold in the United States.
The book-cutting machine works with three knives and uses the knife-cut principle. The knife-cut principle operates with only one knife per edge which cuts against a rubber surface. This surface supports the cut force. The three-knife-trim is performed in one step. The block is aligned and fixed by the pressure bar. The three knives cut all ...
Developed for knife blades requiring good corrosion resistance and very high hardness for excellent wear resistance. Chromium, molybdenum, vanadium, and tungsten are added for excellent sharpness and edge retention. Can be polished to an extremely high finish. Hardens and tempers to 60–62 HRC, where it best balances edge holding and toughness.
Scissors are used for cutting various thin materials, such as paper, cardboard, metal foil, cloth, rope, and wire. A large variety of scissors and shears all exist for specialized purposes. Hair-cutting shears and kitchen shears are functionally equivalent to scissors, but the larger implements tend to be called shears.
Chef's knife: This is ideal for chopping, dicing, slicing, and most heavy knife work. “This is the most versatile knife and a true kitchen essential,” Guzman says.
The horizontal machine band knife blade is supported by a guide to give dimensional accuracies while cutting/splitting. Therefore, only blades that have passed as one main manufacturing step a surface grinding process reach the necessary thickness tolerances of less than 0.02 mm (0.00079 in).