Rotary backplate size for 6"-7" pads?

[twopu]

What size backplate do I need to use for 6" and possible 7" pads. I have a Makita rotary.

 

[the other pc]

Here’s Lake Country’s plate chart.





PC.

 

[twopu]

Thanks For Your Help!!!

 

[4830Deuce]

and now this thread is :closed: