Festool 499949 CXS & TXS Keyless Chuck is designed to provide a fast and efficient tool-changing experience with its FastFix (FX) Keyless Chuck system. This CXS Keyless Chuck is compatible with the CXS drill featuring the FastFix interface, allowing for quick and easy bit changes without the need for additional tools. It accommodates drill bits ranging from 1/32" (1 mm) to 3/8" (10 mm), making it versatile for various drilling tasks. The ergonomic design ensures comfortable handling and precise control during use, enhancing your overall drilling performance. Model Number: 499949