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Larger resaw at a Mekong delta boatyard, fitted with a 150 mm (6") blade. Bandsaw manufactured in 1911. A bandsaw (also written band saw) is a power saw with a long, sharp blade consisting of a continuous band of toothed metal stretched between two or more wheels to cut material. They are used principally in woodworking, metalworking, and ...
Jigsaw (tool) A power jigsaw. Battery-powered jigsaw. T-shank blades. A jigsaw is a reciprocating saw that can cut irregular curves, such as stenciled designs, in wood, metal, or other materials. Jigsaws first emerged in the 19th century [1] and employed a treadle to operate the blade, which was thin and under tension, being secured at both ...
Common tooth patterns found on crosscut saws. All saws have cutting teeth, some may also have rakers and gullets. As the saw is pulled toward the operator, the cutters score the wood to the left and right of the width of the blade, cutting a channel downward into the wood. Many sawtooth patterns have four cutters;
Reciprocating saws have many uses; here, one is shown cutting through hard-to-remove nails in a staircase. A reciprocating saw is a type of handheld, small, machine-powered saw, in which the cutting action is achieved through a push-and-pull ("reciprocating") or back-and-forth motion of the blade. The original trade name, Sawzall, is often used ...
A saw is a tool consisting of a tough blade, wire, or chain with a hard toothed edge used to cut through material. Various terms are used to describe toothed and abrasive saws. Saws began as serrated materials, and when mankind learned how to use iron, it became the preferred material for saw blades of all kind.
Cutter forces are high, so milling machines must be robust and rigid, usually substantial constructions of cast iron. Intermediate materials, such as plastics and sometimes soft aluminium, may be cut by either method, though routing aluminium is usually more of an improvised expedient than a production process, and is noisy and hard on tools.
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