Trend Universal Trim Router Sub-Base, 150mm, Enhanced Compatibility for 1/4 Inch Trim Routers, UNIBASE/Trim, Black, UNIBASE/180ENHANCED COMPATIBILITY: Designed to suit a broad range of 1 4 trim routers, ideal for both corded and 18V cordless models, across all popular router brands. 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 for effortless