Easy mounting via FastFix interface. Quick clamping mechanism for easy clamping and unlocking by hand. Tungsten carbide clamping chamfers for optimum holding force and low wear. With free-turning protective ring to prevent damage to the workpiece. The impact-resistant quick-action drill chuck can be used with all drill and impact drills as well as drill and impact drills with FastFix interface. The drill chuck can be placed on the machine without tools and can be clamped or unlocked by hand. The clamping range of 1.5 - 13 mm allows a wide variety of tools to be clamped securely and quickly.