Maximum power for extra long work assignments promise the steelworks battery tools. The powerful brushless engines achieve a higher efficiency than comparable machines and work almost without wear. In addition to their low weight, the drill tools convince in particular through reduced heat development, longer maintenance intervals and an extremely long service life. Since no mechanical contact for energy transmission is required for modern brushless motors, they work without abrasion and therefore have a significantly higher service life. The cordless tools protect the cordless tools sustainably from wear and performance loss. Another advantage: compared to conventional engines, the compact brushless engines consume less electricity with the same output. A powerful and fully compatible 20 V battery system enables the greatest possible flexibility and long operating times. The powerful batteries are suitable for all devices of the Brushless series with 20 V, such as cordless screwdrivers, rotating screwdrivers, drill hammer, angle grinder, straight grinder, district and stabs, etc. Thanks to the latest lithium-ion technology, neither memory effects nor self-discharge occur. Available in the usual steelworks quality with a 7 -year guarantee on the devices and 2 years of guarantee on the batteries.