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It tore through that modification in about 5 minutes and accomplished in that time what would have taken hours with a Dremmel tool - having the right tool makes life much, much easier. In mere seconds, the friction from the cutting edge had heated the cutting surface and spattered molten metal on my wooden deck. Other positive features include; the variable speed 12 AMP motor, detachable handle, movable guard, paddle switch with safety, and the quick lock plug. I mainly use it for computer case modifications or to cut pipe for home and garden projects. This is one very well engineered product and I am happy to add it to my other Milwaukee tools - they are the only brand that has consistently exceeded my expectations.My only regret is that I wish I had purchased a new one from Amazon instead, as the reconditioned model I acquired from the Milwaukee store was about the same price. oops.
The industrial design is intuitive and quite frankly, amazingly well thought out. I purchased a factory reconditioned 6154-20 in reasonably good shape several months ago and it has performed flawlessly on many tasks. I have yet to need to run this up to the rated maximum speed.I'm glad I practiced using this tool on an old computer case as I did not realize it was powerful enough to melt the steel case. In the end I had a very clean product that only required a bit of polishing.I would highly recommend this tool as it is an absolute steal at under $150 and is amazingly capable with many different abrasive disks available.
It is powerful and heavy duty in the true sense. I don't know how they determine what will come from where. as a long time user of milwaukee tools, I'm not disappointed with this one. But you now have to watch for some imported from china stuff from them.
I had a job remodeling apartment units where every vanity top had to be cut down a couple of inches. The variable speed is great for precision cutting. The 12 amp motor gives it enough power to cut 4" cast iron and everything else I've put in front of it. I've been using this grinder for several years now and consider it one of my "go to tools". I've cut metal, ground out mortar joints, cut tile and marble with it. Being able to slow the wheel down helped me control the tool better to get a clean, straight cut.
I also like that it has a detachable cord. I love the variable speed feature on this grinder. This 4-1/2" grinder is no exception. With as many grinding, sanding, and cut-off wheel attachments there are on the market, this little machine has endless uses. I've owned several Milwaukee electric tools over the years including a sawzall, circular saw, 1/2" drill, and 1/2" hammer drill. All of which are built to last. It comes in very handy especially if you want to maintain precise control of the grinder for various operations.
A specific 4 1/2" chipping blade was used in my efforts. The grinder was easy to manipulate, and did not suffer from over heating during the shaping processes.
Heavy duty performance. A good reliable grinder at a fair price.
I can safely assume that when using a metal grinding wheel the tool would perform equally as well. The easily adjustable wheel guard was especially helpful.
Have used this grinder for specific purpose of using it as a wood chipping / log carver. The variable speeds this model affords makes short and pleasurable work on wood carvings / and shaping.
The variable speeds makes this a well rounded performer.
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