jaw crusher toothshape

Cookiecutter shark,  · The cookiecutter shark (Isistius brasiliensis), also called the cigar shark, is a species of small squaliform shark in the family Dalatiidae. This shark occurs in warm, oceanic waters worldwide, particularly near islands, and has been recorded as deep as 3.7 km (2.3 mi). It migrates vertically up to 3 km (1.9 mi) every day, approaching the ...Circular saw,  · A circular saw is a power-saw using a toothed or abrasive disc or blade to cut different materials using a rotary motion spinning around an arbor.A hole saw and ring saw also use a rotary motion but are different from a circular saw.Circular saws may also be loosely used for the blade itself. ....

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Jigsaw (tool),  · A jigsaw is a saw which uses a reciprocating blade to cut irregular curves, such as stenciled designs, in wood, metal, or other materials. Today they are electrically powered and known as scroll saws, and have been largely displaced by portable power jigsaws. Jigsaws first emerged in the 19th century[1] and employed a treadle to operate the ...