The Bosch MRP01 Router Plunge Base comes equipped many new features. Trigger control system- trigger power switch located in handle for enhanced control (with lock-on button) conveniently located in handle for enhanced control. Afterlock microfine depth adjustment for easy and precise bit depth adjustment at any plunge setting. Smooth plunge action, spring-lock plunge lever, and depth rod for easy and precise plunge routing. Adjustable turret stop makes it easy to set any cumulative depth for multiple-pass operations. Wide 3-5/16-Inch base opening and 2-Inch subbase opening- accepts larger bits and provides larger visibility. Precision centering design makes it easy to keep bit on cutline when using jigs, templets, dovetail fixtures and similar guidance devices. Contoured soft grip handles provides enhanced control and comfort. Plunge release lever conveniently located to allow maximum control. For use with MR23EVS Series Routers.