FLEX FX4221-Z - TRIM ROUTER TOOL ONLYFinish furniture and cabinetry or cut door and window holes from plywood and OSB with the FLEX 24V Trim Router. This 24V trim router tool features a patent pending Spindle Stop shaft lock system for fast, easy bit changes and added safety by preventing accidental startups. Its powerful 1. 5 max horsepower brushless motor delivers constant speed under the toughest conditions, and its variable speed dial offers six settings from 16,000 to 31,000 RPM.