The RIDGID R86037 18V Brushless Impact Driver is a high-quality power tool that comes with a 4 Ah battery included. With a voltage of 18V, this impact driver is designed for maximum performance and efficiency. The brushless motor ensures smooth and powerful operation, making it ideal for various tasks in the workshop or at home. The model, RIDGID R86037, is known for its durability and reliability, making it a popular choice among professionals and DIY enthusiasts.