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Craftsman is a line of tools, lawn and garden equipment, and work wear.Originally a house brand established by Sears, the brand is now owned by Stanley Black & Decker.. As with all Sears products, Craftsman tools were not manufactured by Sears during the company's ownership, but made under contract by various other companies.
McCulloch Motors Corporation is an American manufacturer of chainsaws and other outdoor power tools.The company was founded in Milwaukee, Wisconsin, in 1943 by Robert Paxton McCulloch as a manufacturer of small two-stroke gasoline engines and introduced its first chainsaw in 1948, the Model 5-49.
A leaf blower, commonly known as a blower, is a device that propels air out of a nozzle to move debris such as leaves and grass cuttings. Leaf blowers are powered by electric or gasoline motors . Gasoline models have traditionally been two-stroke engines , but four-stroke engines were recently introduced to partially address air pollution concerns.
Animation of a two-stroke engine. A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a power cycle with two strokes of the piston (one up and one down movement) in one revolution of the crankshaft in contrast to a four-stroke engine which requires four strokes of the piston in two crankshaft revolutions to complete a power cycle.
Worldwide, exposure to PM 2.5 contributed to 4.1 million deaths from heart disease, stroke, lung cancer, chronic lung disease, and respiratory infections in 2016. [8] Overall, ambient particulate matter is one of the leading risk factor for premature death globally. [9] Many construction tasks create dust. High dust levels are caused by one of ...
Due to pollution laws four stroke engines are becoming more popular, particularly in the commercial market. Manufacturers include Honda, MTD and Craftsman. Companies such as John Deere carry low-emission two-stroke engine trimmers. Stihl manufactures a hybrid four stroke engine trimmer that still requires oil to be pre-mixed into the fuel.