Simply attach your trim router to the plate, and this ensures that you will keep the router at 90° to the work piece. Great for edging, lipping upto 10mm This will accept Any size flush trim bit from 10mm upto the R4 trend cutter This can been seen in action on my Instagram page JCR BUILDS All trim routers also catered for- even if not listed separately l!! (Milwaukke, Bosch, Ryobi, dewalt) Colour matched to tools branding colours- others may be available by request. Designed, tested and produced in house