Trend Universal Plunge Router Sub-Base, 150mm, Enhanced Compatibility for 1/4 Inch Plunge Routers, UNIBASE/150ENHANCED COMPATIBILITY: Designed to suit a broad range of 1 4 plunge routers across all popular router brands, including support for an array of 18V cordless router models. PRECISION ROUTING: Features a Precision Centring System that ensures true alignment between the cutter and guide bush for pinpoint accuracy with routing jigs. SMOOTH OPERATION: Made with reinforced nylon and threaded brass inserts, this base provides a robust, low friction surface