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Hacksaw blades are normally quite brittle, so care needs to be taken to prevent brittle fracture of the blade. Early blades were of carbon steel, now termed 'low alloy' blades, and were relatively soft and flexible. They avoided breakage, but also wore out rapidly. Except where cost is a particular concern, this type is now obsolete.
The blade is made of non-rustproof carbon steel, blue-plastered by hand and finely forged from the base to the tip of the knife. The 90 mm (3.5 in) long blade shows patina (dark spots) caused by decades of use. It can easily be sharpened to a shaving sharp edge. Carbon steel is a popular choice for rough-use knives and cheaper options.
If high-strength steels (e.g., stainless steel) are to be cut, the blades made of cobalt HSS (e.g. M35, M42) should be used. Tungsten carbide Normally, there are two ways to use tungsten carbide to make saw blades: Carbide-tipped saw blades The saw blade's teeth are tipped (via welding) with small pieces of sharp tungsten carbide block.
Rotary cutting tools include drill bits, countersinks and counterbores, taps and dies, reamers, and cold saw blades. Other cutting tools, such as bandsaw blades, hacksaw blades, and fly cutters, combine aspects of linear and rotary motion. The majority of these types of cutting tools are often made from HSS (High-Speed-Steel).
The story of handsaws in the United States mirrors the technical and political development of steel. Sheffield, England, was the center of handsaw production during the 18th century and through most of the 19th century because of its fine steel and skilled craftsmen. England's political and economic lock on steel making in the colonies held ...
LENOX Tools is an American brand of hand tools, power tool accessories, and industrial band saw blades. It largely produces saws, saw blades, utility knives, snips, and other cutting tools. The brand was founded in 1915 as the "American Saw and Manufacturing Company" by ten employees to produce hacksaw blades. [1]