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2. NIOSH Power Tools Database - Wikipedia

   en.wikipedia.org/wiki/NIOSH_Power_Tools_Database

   A substantial part of this noise results from the use of power tools, which can produce dangerous levels of noise by themselves. [6] Although the loudness of power tools may be quite apparent to those using them, the actual level of noise produced was mostly unreported and not available easily in an online reference.

3. Polesaw - Wikipedia

   en.wikipedia.org/wiki/Polesaw

   A polesaw (also pole saw or giraffe saw) is a saw attached to a pole or long handle that is used for pruning tree branches that are beyond arm's reach. [1] [2] A polesaw allows its user to cut high branches without the use of a ladder. [3] Polesaws can be manual or motorized.

4. Bucksaw - Wikipedia

   en.wikipedia.org/wiki/Bucksaw

   A bucksaw is a hand-powered frame saw [1] similar to bow saw and generally used with a sawbuck [2] to cut logs or firewood to length . Modern bucksaws usually have a metal frame ("H" [3] or C-shaped) and a removable blade with coarse teeth held in tension by the frame. Lightweight portable or foldable models used for camping or back-packing are ...

5. Bow saw - Wikipedia

   en.wikipedia.org/wiki/Bow_saw

   A modern bow saw is a metal-framed crosscut saw in the shape of a bow with a coarse wide blade. This type of saw is also known as a Swede saw , bushman saw, Finn saw [ 1 ] or bucksaw . It is a rough tool that can be used for cross-cutting branches or firewood, up to a log diameter of half the blade length, limited by the height of the frame ...

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]