Drilling holes in the box

This page explains how you drill the holes for the connectors

1. Find a 15.2mm sized drill

2. Use a marker to mark the middle of the rings on the bottom and a spot 15mm from the rings and 10 mm up from the line on the bottom.

3. 

   Schematic for drilling holes
4. 

   box with two holes drilled.
5. Use a drill to drill out the holes.

6. Now you can screw the connectors into the box.