One of the most commonly performed (and easiest) grinding wheel tests is the Ring Test. The Ring Test is done to quickly determine if there are cracks in a grinding wheel.
It’s easy to conduct a Ring Test on a grinding wheel as demonstrated in this video.
For your safety we recommend you perform a Ring Test on every vitrified grinding wheel before you load it on the machine. It’s a quick test that could save a lot of down time and/or injury.