While working at a construction site, I had to do so not tricky device a gas drill is more precisely a nozzle for a delimbing knife, the unit turned out to be powerful and energy independent. As a basis, I used an old reducer from a Bulgarian bicycle sprockets could not do without a lathe; I had to make a support shaft and a bearing housing, but with an asterisk I had to torment my inner tooth, I sharpened a file and the thing was done for small things and everything was ready to weld.
