Required hole size for the ExplorIR-M-20 sensor PINs

Hi, I need information about the PIN size and its tolerance of the ExplorIR-M-20, (CO2 sensor) but can not find it within the Datasheet. Does anyone has any information on it?

It looks like the pins are .5mm and 1&2 look to have a pitch of 2mm. Page 5 has the pin out and spacing measurements available off the datasheet if this helps. Link to part and the datasheet

https://www.digikey.com/en/products/detail/gas-sensing-solutions-ltd/EXPLORIR-M-20/9952879?s=N4IgTCBcDaIAQFEAeAHANgewE4EkBKAtALIFgAMIAugL5A)

Thank you

Ryan

Hey Ryan,
Thanks for the reply. That 0.5mm is the distance of PIN #3 from the center. If you zoom in it looks bigger. As I have the sensor, the 2mm around it is part of plastic case. I have measured the PIN as 0.3mm but still need confident info on the tolerance and actual size.