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I like it very much. You can measure the length anywhere on the board anf the laser line shows where the blade wil go. The guide casts a thin red line in the path the saw blade will take. This makes it simple to cut any board to length.
Unless your using it for 2x4 framing (which some do), don't bother. I would have given this no stars if possible. I bought an Infiniter, and at ten dollars less it is extremely accurate. I'm very surprised being an Irwin product.
The second laser was equally off by a 1/16". With todays technology, this is inexcusable for any Manufacturer. I returned it and took another thinking I simply received a bad one, but it wasn't the case. One good thing though, you'll never cut a board too short.
Why own something that uses a laser, if it's going to be approximately a 1/16" off where your going to make the cut. It doesn't say "align your laser mark with the cut line that should be about a 1/16" to the right of the laser. The reason is that it is entirely worthless as an accessory that was produced for accuracy. The instructions state to "align your laser mark and the cut line".
A laser that's purpose is to project a cut line only inches away, and have it off by a sixteenth of an inch, this is entirely unacceptable. I received a response from Irwin regarding the inaccuracy of their laser light.they wrote."The laser guide is installed next to the blade so the cut will not be directly where the laser is on the wood, but will be about 1/16" off to the side.".I responded that this very important information should be printed on the package. I've seen cheap lasers that guarantee an accuracy of +/- 1/8" within 50 feet, I find this acceptable.
It works but limits the saw, i wouldnt buy it again. Made my saw blade wobble and reduced the thickness of material I am able able to cut.
Makes squaring up the saw a breeze. This laser works great on my 5/8" arbor radial arm saw. Also has a pop out adaptor to fit 1" arbor saws.
I quickly learned how far off to adjust the pencil mark from the laser for perfect cuts. I switched to a wider kerf blade that was thicker and resolved this problem. This resolved the interference problem. The laser was too thick, and reached the blade guard.
I purchased one of these in a kit with a saw blade for my dewalt 12 compount miter saw. Has worked great for 6 months now. The laser now works when the blade is rotating, shining a red line right next to the blade cut. I love the laser, it makes it so much easier to line up the blade with pencil marks, but installation wasn't so easy.The laser mounts on the saw shaft, replacing the washer to clamp the blade to the saw.
I had to remove the blade guard and grind away part of a washer and spring to provide enough clearance for the laser to fit and rotate. Highly recommend for serious woodworker. I tried to mount it with the irwin saw blade and discovered the saw blade wasn't as thick as the lenght of saw shaft arbor, so the blade spun independently of the shaft when the laser was mounted to the saw. With the new blade and laser mounted, I discovered an interference with the laser and the saw blade guard.
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