Thanks ,Chippy 1970,Owen,Favino for your appreciated input. I have the Bosch gkf 600 which i picked up at a car boot sale minus any accessories ,other than the square base which i believe is for trimming laminates. I have no instruction manual for this router ,so am slowly finding my bearings so to speak, on the capabilities of this little machine. I have been looking on Axminister Tools site and looking at the Makita Chippy mention .Looks like just the tool i need as it does have a smaller guide bush. Again thanks to you all for helping me with this query.