Help with Sunbeam coffee grinder

I'm planning to buy the well-reviewed Sunbeam EM0480. I note it has
detachable portafilter holder brackets for 58mm and 53mm
portafilters.
My problem is that I use regularly two machines, one at 58mm, and the
other at 53mm. Would I have to go through the bother of changing it
each time, or would the 53mm sit within the 58mm bracket ?
Hope someone out there can help....

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