Use a jigsaw to cut a sinkhole. A jigsaw allows you great control however be sure to use a new blade. Wear gloves and eye protection when using a jigsaw.
- Drill starter holes in opposite corners just inside the cutting line. Don't worry if the cut edge is rough, as the rim of the sink will cover this.
- Place the blade of the jigsaw in the starter hole and line up the blade exactly on the cutting line.
- Cut along the lien slowly and let the saw do the work.
Ask a helper to support the cut out area so that the piece doesn't drop and cause the saw blade to bind.