AmaCupid Bench Grinding Wheel 6 inch, for Grinding Sharpening Quenched Steel, High Carbon Steel and Other Hard Tools. Aluminum Oxide Abrasive. 1/2 inch Arbor, 3/4 inch Thickness,80 Grit

This wheel fits the spindle perfect. Works very well.

After 15 minutes of use on mild steel this wheel lost a full 1/4” of diameter and developed a center groove. It is also nearly 1mm out of round, making for terrible vibration of my grinder. I would not recommend this product. Cheap price, but you get what you pay for. Crap, basically I give them points for good packaging, but that’s about all.

It works but not a high quality wheel.

Perfectgit

I wanted to replace one of the gray wheels on my grinder with a finer grit for finish grinding of my more expensive tools and knives. This stone is perfect for the job. The price was good as well. I am satisfied with the purchase.

Was a little difficult to center accurately, but much better than the Norton wheel that I bought at the same time.

The central arbor hole is not parallel to the sides of the stone. It shakes side to side in a big way. It cuts HSS tools OK, but is scary to use due to improperly bored hole.

Absolutely beyond being saved by dressing either with a dressing stick or Diamond dresser. It has been returned today for a refund. Note this fault is not uncommon with cheap grinding wheels? They are produced in large quantities without high levels of quality control? I bought a green silicone carbide wheel from same manufacturer/supplier that’s absolutely fine just required a light dressing. If you read other reviews you will see customers have same issues!

Holding in reserve for replacement of existing wheel.

I use this for sharpening metal-cutting, twist bits. These sharpen at a medium rate, not too fast/slow, providing a clean, fine finish. I will this one again.