the new gsb 18v-45 with carbonless motor is remarkably performing with a maximum torque (hard screws) of 45 nm and a no-load speed of 1,900 rpm very robust, the impact drill has a 13 mm metal chuck ensuring optimal torque transfer good handling and easy operation thanks to the high lightness and the very short head (only 174 mm) ensuring great compactness the batteries and chargers are fully compatible with the bosch professional 18v system and many other tools from the ampshare multi-brand alliance amazon exclusive set contents: gsb 18v-45, 2 x 2.0 ah batteries, accessories, gal 18v-20 charger, l-case