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Powerwall Stack Kit Installation Manual
5. While holding the drill guide to make sure it conforms to the edge of the Powerwall chassis,
drill a 6 mm (1/4-inch) pilot hole using the small hole in the drill guide.
Figure 9: Drilling the Pilot Hole
6. Remove the drill guide.
7. Drill the full-size 35 mm (1-3/8 in) hole with a hole saw, using the pilot hole as a guide.
Figure 10: Drilling the Conduit Hole