Stern punchers have undoubted advantages in comparison with analogs. Some of their models can have up to 4 operating modes, these are: drilling, hammer drilling, chiselling and a special Vario-Lock mode, which provides a change in the position of the chisel. The case, made of high-strength plastic with shockproof properties, is characterized by durability and endurance, providing a high level of safety during operation. Reliability combined with low cost make the Stern puncher, according to user reviews, an indispensable tool when performing household repairs. The tool does a great job of drilling holes, and if necessary, can also be used as a jackhammer. The Austrian company Stern produces a fairly high-quality tool.