Just incase anybody is looking for a high quality driver: http://www.kctoolco.com/Wiha-26764-Precision-P4-Pentalobe-Screwdriver-p/26764.htm I'm not a spokesperson for kctoolco or wiha but this driver is SO much better than the iFixit drivers (both the regular and the "pro"). It is Wiha, one of the best brand in precision tools. I'll try to take some macro-shots later, but this Wiha driver even looks more rounded than the iFixit driver and the other drivers available on eBay, Amazon, etc. Wiha has developed a whole range of P# drivers ranging from P1 (iPhone) to P4 (MBP Retina and Air) and P5 (2009 Macbook Pro battery). P2, P3, and P6 are available but nobody is currently using those heads.