In your job as a computer repair tech, It is critically important you have all the right tools for the job.
This set is available through Amazon and contains all the major tools you would need to work on a single machine.
When working with Macs you will need a variety of screw driver sizes.
This is a standard networking pack that every technician about to go out on a job needs.
Click on the image and it will take you to its product page on Amazon.