The DeWalt DC410 is a Factory Reconditioned Heavy-Duty 4-1/2 inch 18V Cordless Cut-Off Tool (Battery NOT Included). It features 6500 RPM which provides high power for cutting and grinding applications. Its convenient trigger switch with lock-off button for easier gripping. 3 Position side handle offers greater comfort and control. It has spindle lock which allows users to change their wheels quick and easy. Metal gear case dissipates heat for longer bearing, gear and motor life.