The steps for punching the half-rim glasses template are as follows:

1. Place the half-rim glasses template on the punching machine and fix it.

2. Use a pencil to mark the location where holes need to be punched on the template.

3. Place the cork pad on the punch. Cork pads protect the lenses and nose pads of half-rim glasses from scratches or damage.

4. Insert the punching needle into the punching machine and adjust the appropriate hole size.

5. Place the punching needle at the marked position, press the puncher firmly to punch the required hole.

6. Repeat the above steps until all the positions that need to be drilled are completed.