Q: what kind of screwdrivers do i need for opening for a MacBookPro 2009?

In order to open up any Unibody MacBook Pro (non-retina) you will need a 00 phillips head screwdriver.

However, I am unsure as to where you can obtain them. Try eBay or iFixit.com as they sell a lot of tools and screwdrivers.

You can purchase a kit from OWC that has the required tools.

I bought a 00 Philips for opening my 2008 MacBook from a local hardware store.  They had a cheap one for about $3 in a box on the floor vs. the top quality ones for $10.  If you're only doing this once a cheap one will probably be all you need.

Amazon is also carry it.

http://www.amazon.com/Phillips-Precision-Screwdriver-Macbook-Tool/dp/B012589H1W/ ref=sr_1_2?ie=UTF8&qid=1444283361&sr=8-2…