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1. any of various hand tools for cutting wood, metal, etc., having a blade with teeth along one edge
2. any of various machines or devices for cutting by use of a toothed blade, such as a power-driven circular toothed wheel or toothed band of metal



a tool with many cutting points, used for cutting metal, wood, and other materials. The term “saw” is also applied to machine tools and other devices in which a saw is the cutting element. The cutting part of a saw is usually a toothed blade, but there are saws in which the cutter is an abrasive diamond disk or a steel cable; such saws are used to cut materials such as stone and glass.

Saws are distinguished according to their working motion. Thus there are circular saws, which have a rotary motion; jigsaws, whose blades perform a reciprocating motion; and band saws, whose blades are flexible endless belts stretched on two rotating pulleys. Circular-saw blades may be one solid piece of carbon tool steel with teeth cut in, or they may have mounted teeth that are made of high-speed steel or of hard alloy. Jigsaws and band saws usually have teeth that are cut directly into the blade.

Man used small serrated flint tools as early as the Neolithic. Excavations at Troy reveal that saws were used during the Aeneolithic period. The earliest metal saws were made from copper, which was rapidly replaced by bronze. Bronze saws for cutting wood, stone, and bone are common among finds dating from the Bronze Age of various peoples. Steel saws, with edge thicknesses and tooth shapes varying according to intended use, were first used in ancient Rome. Steel saws were widely used in ancient Rus’ in many crafts. Cabinetmakers and wood turners used two kinds of hand saws: jigsaws and bow saws. A jigsaw-type steel saw measuring 39 cm long and having 76 set teeth was found in Novgorod in cultural levels dating from the 11 th century. Old-Russian bone cutters used an assortment of saws.



(design engineering)
Any of various tools consisting of a thin, usually steel, blade with continuous cutting teeth on the edge.
Any similar device or tool, such as arotating disc, in which a sharp continuous edge replaces the teeth.




A cutting tool having a thin, flat metal blade, band, or stiff plate with cutting teeth along the edge; worked either by a reciprocating motion (as in a handsaw) or by a continuous motion (as in a band saw).
References in periodicals archive ?
SPYMASTERS Andrew Parker, SirJohn Sawers and Sir Iain Lobban
Sawer also devotes a chapter to how WEL differentiated itself from Women's Liberation, and the praise and criticism it has received over the years for its determination to work through established political systems, rather than attempting to change those systems.
Marian Sawer is a political scientist and has several publications focusing on women and politics.
Sawer shot the bear from a distance of1 15 yards with 72-pound XI how and a carbon arrow tipped with a 3-blade Muzzy broadhead.
After a century of silence for the agency, Sawers became the very first MI6 head to identify himself publicly in 2010 when he gave his first press conference to a handful of newspaper editors.
Sir John is no stranger to the perils of Facebook - after pictures of him wearing skimpy swimming shorts were posted by Lady Sawers on her Facebook page in May last year when her husband, 55, was appointed to his new job.
Speaking to reporters in New York, Sawers sought to explain why an initial US-drafted text was watered down.
But Sir John Sawers is going to head up MI6 and his well-meaning but naive wife put no privacy restrictions on her Facebook account, rendering herself and her children as vulnerable as her husband.
Lady Shelley Sawers disclosed potentially compromising information, including the location of the London flat used by the couple and the whereabouts of their three children and of Sir John's parents on the social networking site, The Mail on Sunday has reported.
Sawers did not identify the Iranians that Britain was talking to.
Sawers said: "I told John he could go to 15,000gns to buy Bourse out of John Gosden's stable at the December sales, and we got him for 1,500gns.
SNP councillor Sawers said: "We believe we've brought forward a package that minimises the impact on frontline services, minimises the reduction in head count, avoids compulsory redundancies and freezes the council tax.