Used to drill a hole for wiring in a deep position in the wall. Despite being a long handle, sawing work was done. It was wonderful not to bend or crack into a slender figure.
Although the sharpness was not bad with a new article, because it was necessary to cut at the end of the long blade, the force is difficult to transmit and the sharpness is not satisfactory. It is inevitable because the force is hard to be transmitted in the former.
As an improvement desire, it is to make the blade "pulling blade". The current situation is subject to push and pull, but in order to improve sharpness, it is better to use a pull blade (or push blade). If you do, draws will be conveyed even by the previous one, so it seems that sharpness improves.