We’ve posted about add-on miter saw lasers that only show you one side of the blade. Usually, if they’re off, they don’t offer any way to adjust the beam and can even cause the blade to wobble. The blade also has to be spinning to activate the laser, and the blade guard blocks the beam until you start lowering the saw. By mounting the Laserkerf II to the saw and not the arbor, you can eliminate all these problems.
The Laserkerf II illuminates the entire width of the blade, showing you exactly what material the blade will remove. Because the Laserkerf isn’t mounted with the blade, it can’t cause your blade to vibrate; the saw guard doesn’t have to be open to see the entire beam; and the beam is adjustable so you can dial it in to your setup exactly.
Powered by two AA batteries or through a 6′ detachable wall cord, the Laserkerf mounts to a large number of miter and radial arm saws using custom brackets or wedges. The website shows an exhaustive list of what saws will work with the Laserkerf and what installation bracket to buy.
The Laserkerf II comes in two models. Use model 100 if your saw sports a thin kerf blade — 0.092″ to 0.109″ wide. For a standard 1/8″ kerf blade you want the model 125.
Looks like street pricing for the Laserkerf II runs about $80, but if you buy one through the Laserkerf website you’ll only pay about $60 with $7 shipping and handling.