Description The PS21 2-speed pocket driver offers up to 2X faster driving and drilling - The PS21 features 20+1 clutch settings for perfect torque adjustments for precise screw driving - The PS41 impact driver provides 930 In.-Lbs. of torque and faster drilling and driving with 2600 RPM - The PS41 features a fuel gauge for easier Auto Battery management and continued work - Ergonomic soft grip handle for extended comfort and controladjustments for precise screw driving The PS41"impact driver provides 93" In.-Lbs. of torque and faster drilling and driving with 26"0 RPM The PS41"features a fuel gauge for easier Auto Battery management and continued work Ergonomic soft grip handle for extended comfort and control