Screwdriver Size for lenovo G510?

Screwdriver Size for lenovo G510? - 1

Added (1). Hi Guys,

This question is strictly for Lenovo G510 Core i5 model owners… My laptop is recently heating up alot so I decided to clean it up and apply thermal paste and stuff on it…

Now, I currently don't possess a screwdriver and want to purchase one from market… But have no idea which size screwdriver will open up this system and couldn't find anything from googling…

Need help…

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PZ1

Screwdriver points like the Phillips type are graduated in sizes like "PH" 0, 1, 2, 3 etc in USA and some countries by "arbitrary size" numbers. But those fit the screwhead recess that can vary from maker to maker of fasteners. So there's no set screwdriver size for any particular screw.
The screws in most computers are metric in graduations like M1, M2, M3 etc. But what yours are could only be described in a service manual for that particular laptop. Search Google.