If you are talking about the irwin model laser, just take out the batteries or better yet flip them over that way it will still be balanced.I'm gonna try to dis-able mine. I can't seem to fine the original bolt and washer that came with saw.The laser line is just too distracting.
Although, when I first saw it on NYW I was intrigued...but that was YEARS ago...when I could afford cable.:laughing:
I picked up one like the Irwin and put on my Makita 10" miter saw. It definitely marks the left edge of the blade. I like it because I can readily see if I'm cutting the line. It's also great for finessing a miter if its a shade too long.