That will work if you just plan on doing this one time, but if you plan frequent use of the tools it is better to buy a quality screwdriver with a hardened metal tip. The cheaper tools sets often have low quality tips that will tend to strip out the heads of the screws if you are not very careful.
This one by Wiha tools is good quality. Amazon sells this screwdriver with the Torx #6 you need for $8.35.