Cutting the Sink Drain Hole

What happens here

After initial tool tests, an angle grinder fitted with a 4.5-inch diamond cutting wheel is used to cut the required square hole in the metal cabinet floor for the drain pipe. A pilot hole is drilled first, then the angle grinder is carefully maneuvered to create the square opening, ensuring the cut is large enough to accommodate the 2-inch drain pipe and any necessary connections.

Goal: Create a square opening for the sink drain pipe in the cabinet.