1. The Laserkerf is unique in the way it marks the cut area.
The normal laser line is approximately .030" in width . The Laserkerf standard laser beam is .125" wide . You can see the dramatic difference. The standard carbide saw blade cuts a kerf .125" wide. It is easy to see that when the laser is aligned with the blade everything in red will be removed. The two pictures below show the cut marks as they would be used in alignment with the laser/blade.

No matter which side of the blade the good section of the wood needs to be on makes no difference because the laser beam shows the material the blade will remove.

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