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Typical full-size hacksaw frame, with 12" blade. A hacksaw is a fine-toothed saw, originally and mainly made for cutting metal. The equivalent saw for cutting wood is usually called a bow saw. Most hacksaws are hand saws with a C-shaped walking frame that holds a blade under tension.
Starting in 1886, Göran began the production of saw blades that were of that same high-quality steel. The little fish surrounded by a hook that was registered as the official emblem of rolled steel for fishhooks was also used for the handsaws, to communicate these special properties and quality of the blades. [9]
Most blades were made of steel (iron carbonised and re-forged by different methods). [10] In the mid 18th century a superior form of completely melted steel ("crucible cast") began to be made in Sheffield, England, and this rapidly became the preferred material, due to its hardness, ductility, springiness and ability to take a fine polish. [ 11 ]
During the same year Starrett began making and refining saw blades, and continues to be a major manufacturer as of 2015. [citation needed] In 1895 Starrett patented the divider with trammel. [6] In 1920, the company added its first gauge to the product line and quickly became the world's largest innovator and maker of precision calibrators.
Porter's Disston Division was sold in 1978 and became the Henry Disston Division of Sandvik Saw of Sweden. This division was then sold in 1984 to R.A.F. Industries of Philadelphia and became known as Disston Precision Incorporated, maker of specialized flat steel products. In 2013, R.A.F. Industries sold Disston Precision Inc. in a private sale ...
Materials for saw blades have varied over the ages. There were probably bronze saws in the time before steel making technology became extensively known and industrialized within the past thousand years or so. The most popular material for handles of hand saws is applewood; in the early 1900s 2,000,000 board feet of applewood were used annually ...
The first type of cold saw blade, solid HSS, may be made from either M2 tool steel or M35 tool steel, alloyed with additional cobalt.Solid HSS saw blades are heat treated and hardened to 64/65 HRC for ferrous cutting applications and 58/60 HRC for non-ferrous cutting applications.
Two-man saws were designed to cut in both directions. Careful tooth design was necessary to clear the sawdust during the cut. Two-man saws were known to the ancient Romans, but first became common in Europe in the mid-15th century. In America, crosscut saws were used as early as the mid-17th century, but felling saws only began to replace axes ...
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