I've just been checking for you Dom. This is the same as the Axminster one but cheaper. Silverline 633936 Dovetail Jig: Amazon.co.uk: DIY & Tools
Last year they were doing them with 7/16 and 9/16 combs on top of the 1/2 one for only a tenner more, but they don't seem to be offering the extra ones with them at the moment.
I think that fine comb from Axminster will fit it, too.
What do you need to know about the guide bushes? I've got a set of them. I use them with my Einhell. I can let you have dimensions if you need them.
Last edited by istracpsboss; 03-31-2010 at 07:26 AM.