DCG414N-Flex Volt-XR-Grinder-125mm-54V-Bare-Unit-DEWALT-DCG414N-XJ-p-The-DEWALT-DCG414XR-Flex Volt-Grinder-has-a-brushless-motor-for-enhanced-performance-even-in-demanding-applications-With-a-recessed-spindle-lock-design-that-allows-max-depth-of-cut-&-greater-protection-to-the-button-especially-when-its-used-in-confined-spaces-p-p-The-electronic-brake-stops-the-wheel-quickly-when-the-trigger-is-disengaged-&-the-electronic-clutch-reduces-the-kickback-reaction-in-the-event-of-a-pinch