The CLPK250-181 features the EC Brushless IDH182 socket ready all-in-one impact driver and HDS182 Compact Tough hammer drill driver. The IDH182 impact driver features the socket ready all-in-one tool holder, which combines a 1/4 In. hex and 1/2 In. drive into one for ultimate versatility to complete a wider range of applications. The socket ready all-in-one tool holder eliminates the need for users to own an impact driver and impact wrench and also eliminates the need for fragile socket adapters. The IDH182 integrates the Bosch Performance Control System, which allows users to adjust tool speed and torque with a push of a button to match the tool's performance to the application at hand. Equipped with Bosch's EC Brushless motor, this tool provides 2X the motor life, increased performance and improved runtime. The Bosch built hammer and anvil system delivers maximum impact endurance and increased tool performance in wood and metal fastening applications. This tool provides electricians, plumbers, carpenters, HVAC professionals and other pro users with an unmatched solution to get the job done efficiently and effectively. The HDS182 is equipped with an advanced, open-frame EC Brushless motor that provides the tool twice with the life of previous models. An individually customized Electronic Motor Protection system also protects the maintenance-free motor from overload and further ensures the longevity of the tool. The HDS182 features optimized torque for screw driving, increased speed (up to 1,700 RPMs) for drilling applications, and an 25550 impact rate for hammer drilling applications. This tool also features a variable speed trigger for reliable speed regulation and 18+1 clutch settings for increased versatility. To maximize jobsite efficiency, the HDS182 comes standard with a magnetic four-tip bit holder and a belt clip that allows for convenient tool storage when not in use.