COMMENT: - - As much as I love seeing a chainsaw, I hope you're more planting trees than cutting them. The world is already more deforested than ever before. I cut down weedy, invasive trees and here we are planting rainforest/native trees on our property in Northern NSW, Australia.

these cuts are absolutely horrible, this guy is supposed to be a professional he will eventually kill someone or something like he did an undercut and the notch doesn't stand right in front of them the tree can go anywhere trust me I always leave a tree in the day and I wouldn't let this guy cut a sapling at my job If there was a shed, it would definitely hit as ugly as its notches.

The origin of the sawmill is controversial. It is thought that the first such device was made by the German orthopedist Bernard Heine in 1830. This tool, called the osteotome, has a non-linear cutting surface with small incisors at the junction of the chain. By turning the handle of the gear wheel, the chain moves around the bar. The tool was used, as the name suggests, for cutting bones.

Joseph Buford Cox and Andreas Stihl are important contributors to the development of the modern chainsaw. Stihl designed and patented a chainsaw in 1926. In 1929 he produced a cloth-powered saw and set up a company to go into mass production. On the other hand, in 1927, Emil Lerp, owner of the company named Dolmar, designed the first cloth saw and then started mass production. McCulloch and Industrial Equipment Company in North America also switched to chainsaw production. The first models of saws are quite heavy and are for two people. They have a long blade and wheels like a pull saw because they are heavy. Other parts, thanks to the strip coming from the wheeled power unit, drives the blade for cutting.