About turnover and assembly of furniture. Before that, he used his younger brother - GSR 12V-15. It is light, compact, and a light press of the start button starts at low speeds. This is very convenient when assembling and more or less precise work, but it is quite difficult to drill hard materials with it, there is not enough speed and power, and the battery runs out quickly. If we compare them, then the younger one is more suitable for small jobs and rare drilling of walls / metal in small diameters, and the older one is better at drilling and working with heavy loads. I do not regret that I switched to this one, for me this difference is not very critical and arose only when I had to hang the shelf myself. With the younger it was quite hard, long and laborious. And when it became necessary to hang a cabinet in the bathroom - I realized that with the younger version I would spend too much time and effort on it, and I couldn’t live like this anymore - I needed to take a more powerful tool :)