I bought this screwdriver to unscrew my Macbook mid 2009 and by Corsair 8GB memory CMSA8GX3M2A1066C7 for Apple Mac (1066 MHz 204-pin, 2x 4GB) DDR3 RAM SO-DIMM kit installed. After only a few days the ordered product came with me to the mail. There seems to be a quality product and is working properly. Therefore 5 stars.