THE FLEX ADVANTAGE - 20% more power with 24V lithium, 25% longer runtime with THERMA-TECH heat management, up to 50% faster charging with high-power, dual fan chargers SPINDLE STOP - Patent-pending shaft lock system for fast, easy bit changes and preventing inadvertent startups BEST-IN-CLASS RUNTIME - Average runtime of 275 feet per charge with 5.0Ah battery (tested on red oak with 3/8-inch roundover bit, battery sold separately) 1.5 MAX HORSEPOWER BRUSHLESS MOTOR - Intelligent sensor-free brushless motor designed to eliminate friction and optimized for higher efficiency and power under the toughest applications ACCURATE DEPTH ADJUSTMENT - Quick-release collars deliver easy and reliable depth adjustment to 1/64 inch QUICK-ADJUST EDGE GUIDE - Allows convenient parallel cuts along a straight edge VARIABLE SPEED DIAL - Six settings from 16,000 to 31,000 RPM