The professional Kraftmax KF-CDRH025 is the best combo tool you can have. The rotary hammer combo and cordless drill is the best tool you will ever have. Our rotary hammer has an idling speed of 850 to 230 volts. Ideal for use in masonry work or drilling in steel, this dual-purpose drill combines a hammer drill and an ordinary drill, making it an indispensable tool in the modern DIY kit. The impact drill is designed for easy handling and long life in mind, it features an ergonomic design with a rugged aluminum gear case and a soft-grip auxiliary handle with a fully integrated lock switch. Our cordless drill is 18v with non slow speed up to 1350 rpm. LED lights are installed to make working in a dark environment easier. This cordless drill has a 2-speed option that will serve you the need of every task. Ergonomically designed flexible handle for comfort and quick charging in 1 hour.