Step 4: Drill
Lay your front panel over the opening of your box. Use the template as a guide to mark the four corners of the box for drilling. Also make two marks on the side of the case. One of these marks is for the power jack and the other mark is for the audio cable.
Please keep in mind that the circuit board will lay on the bottom of the case and switch and knobs will be protruding from the top. Place these holes somewhere in between.
After you happy with all of your markings drill the holes.
For the pilot holes for the screws I used a 5/32 drill bit.
For the M-type jack I used a 3/8" bit.
For the stereo cable, I used a 1/8" bit.