The DEWALT DCK2050E2T XR Brushless POWERSTACK Twin Kit contains the following: 1 x 18V DCD805E2T XR Brushless G3 Combi with an ultra-compact, lightweight design for use in confined spaces. An enhanced pivoting LED positioned on the foot offers greater visibility in dark and confined spaces. POWERSTACK batteries deliver 50% more power with a 25% smaller footprint and work with all DEWALT 18V XR tools. Chuck: 13mm.No Load Speed: 0-650/2,000/min.Impact Rate: 34,000/bpm.Max. Torque: 90Nm.Capacity: Steel 13mm, Masonry 13mm, Wood 55mm.Weight: 1.3kg. 1 x DCF850 XR Brushless Impact Driver with a 3 mode switch for enhanced control. POWERSTACK batteries deliver 50% more power with a 25% smaller footprint and work with all DEWALT 18V XR tools. Bit Holder: 6.35mm (1/4in).No Load Speed: 0-1,000/2,800/3,250/min.Impact Rate: 3,800/bpm.Max. Torque: 205Nm.Weight: 0.9kg. 2 x 18V 1.7Ah Li-ion XR POWERSTACK Slide Batteries. 25% smaller and 15% lighter than the DEWALT DCB183 18V XR 2.0Ah battery, maki