The scope of the tool is quite large for the price. However, you do not need anything to eg. To change the battery. The metal parts are stable and solubilizing a good job. The material of Plastilteile is however of poor quality. When you open the display will be very worn out the first time around. One of the plastic tools has broken me removing the battery directly. For the low stability of Plaszikteile there are therefore 2 star deduction. But since I could successfully replace the battery pack with the tool, there is a strong buy recommendation. Only those who want to use the tool on a regular basis, should focus on quality and are looking for a better alternative.