The Bosch Dynamic series Twin Pack, contains the following: 1 x 18 Volt GSB 18 V-LI Dynamic series Combi Drill has an integrated impact drilling function for drilling in masonry up to 13mm. Offers a powerful 67Nm, due to newly developed gearbox design and new 4-pole Bosch high-performance motor, for up to 55 holes (6 x 50mm) in masonry (test concrete in accordance with EN 60745-2-1-) with only one battery charge. Other features include a 13mm Auto-Lock drill chuck, an integrated LED light, a motor brake, practical belt clip and an ergonomically shaped handle with slim circumference and softgrip covering for low user fatigue. 1 x 18 Volt GDR 18 V-LI Dynamic series Impact Driver offers a unique choice between the Premium (longer battery runtime) and Compact (less weight for even more comfortable work) batteries. It has a high torque and high impact rate (3,200 bpm) for fast work progress when driving screws in metal (up to M14) and wood. The very short design offers perfect handling, even in the tightest spaces and overhead and has a practical battery charge level indicator constantly shows how much energy is left in the battery Both drills feature the unique Bosch Premium lithium-ion technology for longer lifetime and unbeatable battery runtime, and Electronic Cell Protection (ECP): protects the battery against overload, overheating and deep discharge.