Verify Hole and Repurpose Cut-out

What happens here

After the hole is successfully drilled, the worker pulls the hole saw back, revealing a perfectly circular opening in the fiberglass pool wall. The circular piece of fiberglass that was cut out is then retrieved. One of the workers holds up this removed disc, explaining that it will be kept and used as a color sample, demonstrating a practical reuse of the byproduct from the drilling process.

Goal: Confirm the hole is properly cut and identify a use for the removed material.