The Bosch GSR 18 V-EC TE Professional Cordless Drywall Screwdriver has the best combination of power and weight. It has the longest runtime for continuous work (up to 3400 screws per battery charge with 4.0 Ah), a compact design and light weight for fatigue-free work – 1.6 kg (4.0 Ah). There is Bosch EC motor technology for long lifetime and it has the shortest head length (207 mm) for precise work. There is a locking button for continuous and fatigue-free work and an integrated LED light for illuminating the work area, even in dark places. There is also a belt clip for practical temporary storage. Innovative CoolPack batteries ensure optimum heat dissipation and therefore increase lifetime by up to 100% (cf. Li-Ion batteries without CoolPack). Bosch Electronic Cell Protection (ECP): protects the battery against overload, overheating and deep discharge. Adjustable depth stop for precise screw depth setting. Compatible with MA 55 Professional collated screwgun attachment (optional) for driving rows of screws. This tool comes complete with a depth stop, L-BOXX, magnetic universal holder and 1 x screwdriver bit (PH2).  *Bare Unit only. Use with your existing batteries and charger. Torque, max. (hard/soft) - 25/5Nm No-load speed - 0 – 4200rpm Battery voltage - 18V Battery capacity - 4.0Ah Length - 251.0mm Width - 78.0mm Height - 239.0mm Cell type - Lithium-ion Bit holder - 1/4" internal hexagon Weight incl. Battery - 1.6kg