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You do have to keep the arbor bolt and nut extra tight, to avoid blade slippage. I installed this on my 20 year old B&D power miter box, and what a difference. Instantly, I knew exactly where the blade was going to cut, without having to sight along the edge of the blade, as I had been doing for many years. But I'm going to try a drop or two of silicone sealer between the laser and the blade, and see how that works. Regardless, it's a neat device; wish I could fit one on my wet saw.
The Irwin Laser Guide was easily installed and gave prcision to table saw cut-off and mitering.
This laser guide works as advertised, I only gave 4 stars because IRWIN name should have been made in the USA, but it's made in ChinaJohn
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. You can measure the length anywhere on the board anf the laser line shows where the blade wil go. I like it very much.
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. 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. I bought an Infiniter, and at ten dollars less it is extremely accurate. I would have given this no stars if possible. With todays technology, this is inexcusable for any Manufacturer. The instructions state to "align your laser mark and the cut line".
Unless your using it for 2x4 framing (which some do), don't bother.
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.
I returned it and took another thinking I simply received a bad one, but it wasn't the case.
The reason is that it is entirely worthless as an accessory that was produced for accuracy.
One good thing though, you'll never cut a board too short.
I've seen cheap lasers that guarantee an accuracy of +/- 1/8" within 50 feet, I find this acceptable.
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.
The second laser was equally off by a 1/16".
I'm very surprised being an Irwin product.
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