The DCG414 54-volt grinder delivers true grinding performance for heavy duty construction and metalworking applications. You can now complete the toughest jobs with no trailing cables. It runs on the Worlds first 18/54 volt convertible battery pack system giving you raw power anywhere and the dawn of a new era in cordless power tool technology. This will provide in excess of a full day's runtime on a single charge for most users. The potential for this technology is limitless for each and every trade with game-changing levels of performance. The DCG414 has a compact gear case so it's not too bulky for tight spaces and easy keyless guard for quick adjustments and an improved non-slip grip for comfort.