Cordless Hammer Drill GSB 12V-15. The GSB 12V-15 Professional cordless drill with hammer function offers a balanced ratio of power and size in Bosch's 12-volt class. With a hard torque of 30 Nm and a speed of 0-1,300 rpm, this drill provides an ideal combination of performance and compactness. Its compact design allows for optimal handling and is perfect for overhead work and tight spaces. Overloading, overheating, and deep discharge are prevented by the drill's Electronic Cell Protection. The hammer function of this power tool is designed for drilling in wood with a maximum diameter of 19 mm, in steel and masonry up to 10 mm, and for screw diameters up to 7 mm. The device is compatible with all Bosch Professional 12-volt batteries and chargers. The GSB 12V-15 Professional also features 2 gears, autolock, battery status indicator, Electronic Motor Protection, and lithium-ion technology. Includes 2 x GBA 12V 2.0Ah batteries; GAL 12V-20 Professional charger; 25-piece bit set; Bosch Professional 12V tool bag.