Bosch LS010 Miter Saw Laser Washer Guide, Black

I didn't quite understand why this didn't work on the Bosch GCM-12SD sliding miter saw, so I bought it. When I got it, I finally understand what the problem is ... there is, on the back of the laser washer, a keyed hole. That keyed hole is not deep enough. As a result it does not sit close enough to the blade to tighten down the blade. So, the blade will not "catch" and thus spins independent of the motor shaft. Not good, Bosch ...So here is what I did to fix it. I got some of that thick rubbery material that you use to line cabinets and I cut it into a circle (the size of the laser washer). I then cut a small hole so it would fit between the laser washer and the blade. Now, when I tighten the laser washer the rubber material fills the small gap between the laser washer and the blade. Problem solved.The laser still seems to be accurate on its cuts, so all is good. So happy to have a laser on this awesome saw!As for brightness, i use my saw indoors and I have no problem seeing the laser. I love how the laser line is very fine making it easier to make accurate cuts.All in all, bosch needs to fix this design flaw. Until then, use this method and it works great.

This is hands down the best upgrade you could get for your miter saw. I went in worried by the bad reviews, but found that it is bright and accurate and exactly performs it’s described function. Comes with batteries in the unit and a spare set. I’d wager that by the time I need to buy batteries I’ll be too old to operate the saw.Installation is easier than a blade change. To use, just operate the saw normally. As soon as the blade guard retracts you’ll have a bright super narrow laser line. The line will be exactly where the edge of the finished cut will be.

Works just fine with my GCM12SD. Ideally I really wish Bosch included the dual lasers like the Euro version of this saw has, but this is not a horrible option. I have other saws with lasers and most are unreliable, inaccurate, and go through batteries like crazy because I will just leave the laser on all day. This one is always accurate, and is not on when the saw isn't running so the batteries last longer. Of course the biggest downside is that it's not on when the saw isn't running so it's not very useful for making quick reference cuts. Like a lot of old school finish guys learned to do precision cuts by intentionally making notch cuts off my mark and then working the piece in while the blade is running, so this laser is similar to that process, but just simplifies it and makes it faster. However for a novice who is not used to or comfortable with moving the workpiece while the saw is running, this could be dangerous. It's also fairly dim and almost unusable in direct sunlight, but almost all lasers are, and Dewalt's XPS is completely useless in similar conditions. All in all it's not great, and it definitely has some flaws, but it's useful and a worthwhile addition.

Like others, I was a little surprised at how dim it is. But the real problem was that it replaced the washer on my Bosch miter saw, but unbeknownst to me was that even when very tight, it was letting my blade slip a little on startup. Months later when I had to change the blade I saw the wear cut into the blade. The wear on the laser was only on half of the circular washer - as though it was not totally square with the shaft when tight. I tried it on the new blade and then replaced it with the standard washer and I could actually hear a different sound during startup. I apparently was hearing the slipping sound all along and but assumed that was the sound of the saw - and with the washer in place it was notable different. Apparently it bottoms out on the shaft and not the blade, allowing slippage - even though it is only slight slippage during the initial acceleration. The out-of-square issue was probably due to the same thing - that it was tightening on the shaft before it was square and tightening on the blade. And these were Bosch blades. So I have stopped using the laser.

I almost didn't buy this based on all the negative reviews here, but it works great for me. I question whether all the reviewers here have actually used this. Contrary to what others here have written, it fits fine on my Bosch Axial GCM12SD. I use this primarily in my indoor shop and the line is plenty bright. Because the washer is on the side of the blade you will need to ensure that the line is on the side of where you intend to cut. Perhaps if I was using this outdoors my experiences would change, but I have not yet had a need to. My only complaint about this product is that fact that the laser will not project until the blade is spinning. This feature is common to all the laser washers so its not really a complaint about this product in particular.

Bad investment! I should have paid more attention to the reviews. Very poor light. I thought the batteries might be weak so I was going to replace them with the three replacement batteries that come with the LS010. Then I realized that the replacement batteries are probably as old as the ones in the Laser, since they were all packaged together. I purchased new batteries and it made no difference.I, as a test, tried using the LS010 in total darkness and it worked well. I do not recommend using power equipment such as this in total darkness. It's not safe. I only did this to prove a point.Then I realized that the light only works when the saw is turned on. It's not safe to have the saw powered, blade turning and trying to line up your material to be cut. It is a law suit waiting to happen.My wife purchased me a GCM12SD as a gift. Comes with no laser light. She was so happy and proud to buy me this gift. I do not have the heart to break this news to her.Ron B.