Third party router collet question

I recently purchased the Erbauer ERB380ROU 2100W router from Screwfix. Whilst it's not top-end, it seems a reasonable router for the price. However, the one big problem I have found with it is that the 1/2" to 1/4" collet adapter doesn't grip 1/4" router cutters very firmly. They appear to be secure, but as soon as you power it up, the cutter comes loose (and could be dangerous!). I bought a third party collet adapter which I think is marginally better, but still not great. What I think it needs is a dedicated 1/4" collet (not an adapter). As the 1/2" collet appears to be "trapped" within the supplied collet nut, it would also need a new nut for the 1/4" collet. Does anyone know if such collet/nut assemblies are a standard fit/thread and, if so, can anyone recommend a suitable one for this router?

Thanks in advance for any advice.

 

Thanks for your considered replies gents... Given that I already have the router, I was hoping for something a little more helpful.

 

Thanks Malkie and KIAB. I did look at the Makita, but am intrigued by the 3/8" collet. I already have an old Bosch 1/4" but it's only 600W. I understood (perhaps wrongly) that I needed a 1/2" router for 38mm worktops (and also somewhere in the region of 2000W of power). I've never come across 3/8" router cutters and with only 900W of power, that's why I discounted the Makita. I agree, at £135, it would be a good alternative to what I bought, but only if it can do what I need of it.