Hi guys , I am new in car detailing and I have just bought a Makita 9227C as advice by most sifus here . Look, my nephew is coming back from US for this CNY and I am asking him to get me the Meguiars back plate which is relatively quite cheap there. My problem is my Makita 9227C spindle is M14 where as my nephew said the Meg back plate spndle in US is listed as 5/8 inch or 0.625 . Is M14 the same as 5/8 or 0.625 . Thanks .