What is the metric thread diameter of my crank arm pedal thread that's stripped I'm in the market for a threading repair kit. I live in Australia so the closest options for me are to go to Supercheap Auto or Bunnings Warehouse (links to products from those stores). These repair kits have metric sizes e.g. m6, m8, m12, etc. What is the right sized repair kit for my crank arm to be re-threaded?

My crankset is Shimano Deore FC-T6010 170mm.

No idea which one will work. Thanks for any help.
The vast, vast majority of pedal threads are 9/16" x 20 TPI. In nearly a decade in the bike industry I am aware of zero metric-threaded pedals (amazing, considering the lack of standardization in other parts!). The taps we use at the shop cost much more than the cost of a generic replacement crank (assuming it's the non-drive side, which it usually is).