The Panasonic EYC231PN Twin Pack contains the following: 1 x 18V EY74A3 Smart Brushless Drill Driver automatically adjusts between a fast rotation speed for lighter work and higher torque whenever the load increases. This enables appropriate torque and rotation for any task. For maximum convenience and accuracy, the new tapping mode allows automatic reverse without having to change the toggle. Chuck: 13mm KeylessNo Load Speed: 20-530/70-1,800/min.Max. Torque: 50Nm, 18 Settings 1 x 18V EY76A1 Smart Brushless Impact Driver with DASH mode, this allows the unit to instantly reach full speed. It has an ultra-compact body design with increased impact protection as well as an ergonomic soft grip for user comfort. Fitted with a one touch bit holder with a tapering collar design that makes accessory changing quick and simple. Chuck: 6.35mm (1/4in)No Load Speed: 0-950/0-1,450/0-2,800/min.Impact Rate: 0-1,800/0-2,500/0-3,100/min.Torque: 26/150/170NmCapacity: Tensile Bolt: Standard M6-M16, Hig