Take advantag of more power using 18V XR tools with FLEXVOLT ADVANTAGE technology. A unique electronic module with pack identification technology allows the tool to recognize when an XR FLEXVOLT battery is connected and unlock even more power. The DCG409 deliversup to 54% more power when paired with a DCB546 XR FLEXVOLT 6Ah battery compared to a DCB184 18V XR 5Ah battery. Part of the DEWALT Perform & Protect range, the DCG409 incorporates an integrated kickback brake and the E-CLUTCH anti-rotation system for added user protection.