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2. NIOSH Power Tools Database - Wikipedia

   en.wikipedia.org/wiki/NIOSH_Power_Tools_Database

   According to NIOSH, the Power Tools Database "is particularly helpful in determining the 'real-world' noise level of power tools as they are used on the job." [ 1 ] [ 2 ] The database is a part of the much larger Hearing Loss Prevention Research Program conducted by NIOSH.

3. Sawhorse - Wikipedia

   en.wikipedia.org/wiki/Sawhorse

   Lightweight, stack-able, saw horses from the book Agricultural Woodworking: a group of problems for rural and graded schools ... by Louis Michael Roehl. 1916. In woodworking, a saw-horse or sawhorse (saw-buck, trestle, buck) [1] is a trestle structure used to support a board or plank for sawing.

4. Cold saw - Wikipedia

   en.wikipedia.org/wiki/Cold_saw

   Cold saws use either a solid high-speed steel (HSS) [3] or tungsten carbide-tipped, resharpenable circular saw blade. [4] They are equipped with an electric motor and often a gear reduction unit [5] to reduce the saw blade's rotational speed while maintaining constant torque. This allows the HSS saw blade to feed at a constant rate with a very ...

5. Strob Saw Blade - Wikipedia

   en.wikipedia.org/wiki/Strob_Saw_Blade

   Weyerhaeuser were granted a patent on strob saw blades in 1971, [3] but there has been little improvement in the design since then. [4] The Strob inserts or rakers, have cutting edges which extend outside the two plane surfaces of the blade, but fractionally less than the kerf. These rakers have some important advantages, primarily the ease ...

6. Reciprocating saw - Wikipedia

   en.wikipedia.org/wiki/Reciprocating_saw

   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 in the United States , where Milwaukee Electric Tool first produced a tool of this type in 1951.

7. Decibel - Wikipedia

   en.wikipedia.org/wiki/Decibel

   The decibel (symbol: dB) is a relative unit of measurement equal to one tenth of a bel (B). It expresses the ratio of two values of a power or root-power quantity on a logarithmic scale. Two signals whose levels differ by one decibel have a power ratio of 10 1/10 (approximately 1.26) or root-power ratio of 10 1/20 (approximately 1.12). [1] [2]