Circular and circular saws as indispensable helpers in your farm. How to saw and tune the tool?

The forerunners of modern automatic saws were tools made of stone, bones, on which jags were applied from one edge. The beginning of this instrument was laid in the fourth millennium BC. They are used both in household work and in the creation of various works of art. Then stone and bone were replaced by copper, iron, steel. The first power saws appeared in Germany in the XXIV century. Electric saws became widespread only in the 20th century. You need help? Look track saw review.