Forney 72404 Bench Grinding Wheel, Vitrified with 1-Inch Arbor, 60-Grit, 6-Inch-by-1-Inch
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Yes, there are plastic rings inside the arbor hole to keep it from falling out.
It came with a 1/2 inch arbor reducer when I bought it, which my bench grinder also has. It was a while ago, but I believe any reputable company would include one (a cheap piece of plastic).
On the grinder, I'd use a diamond blade.
Selected User Reviews For Forney 72404 Bench Grinding Wheel, Vitrified with 1-Inch Arbor, 60-Grit, 6-Inch-by-1-Inch
Wobbles like crazy, and according to a few reviews here, this wheel can have rotational trueness issues; perhaps one of those items where you have to order 5 of them and try out each one to see which one is the least out of roundness, then return the rest; it appears that most of the wheels on Amazon can have this problem, which is a pretty sad situation. I'm returning mine and going to Home Depot to get a new one.
These wheels came in twos for me. One is 60 grit, and the other is 36 grit. The 60 grit is a good choice. When spinning, the 36 grit wobbles and appears to be dangerous. Inadequately constructed, but not inadequately secured.
This was ideal for grinding steel for tool shaping. To mount this on our motor, I purchased a 1" tapered spindle adapter separately. Several plastic sheaths were used to size the inner diameter.
It appeals to my tastes. It was a little too big for my machine, but I was able to make it work. With the new wheel, the vibration is gone, and my 40-year-old grinder is as good as new.
It's possible that there'll be some. This is a fantastic wheel. There may be some "trueness" issues, but given that I have to use all of the arbor adapters for my grinder, I'm inclined to believe that they are to blame rather than the wheel. In the future, I intend to look for a more rigid arbor adapter option. However - It runs almost perfectly straight and has proven to be a reliable tool sharpener.
It's exactly the right size and shape, with no bumps, gaps, or other flaws. I intend to purchase a few more in various grits, but for now, I'm happy with this one. Some who require professional results may require a higher-quality stone, but for me, as a novice woodworker, it suffices.
Stone of high quality.
Grinding that is both aggressive and smooth. This is ideal for HSS tool bits. When using a rotary tool to dress the edges, use caution because small areas of the edges can break off if the tool is used too forcefully.