are you using a template or free hand?
freehand then axminster, wealdon heck even screwfix do 45 degree vee bits.
if your using a template then it depends on if it's designed for use with a bush in the router base or a bearing follower.
I've not seen a vee grooved pattern bit in the UK.
Weldon if you can wait a day or two for delivery (they are usually pretty quick)
If you need something off the shelf, screw fix or toolstation have some. even silverline rubbish won't wear out in the time it takes to replace it with a decent Weldon one.
Thank you all for your comments its freehand that I am thinking doing or just trace the image on the wood I have tried a couple but not very good have seen some good work done with a router. I will look at these outlets see what I can find awell trial and error
thank you
As an overseas customer, if you're looking for (electric) router bits then IME you can't go wrong with Wealden. Excellent service, though caution, I have not used them at all this year, so have no idea to what extent - if any - they're affected by Covid.
A short pause and I'll come back and post the link as a P.S. here
BTW, they have a HUGE range, loads for shank sizes and all manner of shapes & sizes. Have a look at their on-line catalogues. Highly recommended - usual disclaimers.