This wheel is similar to the wheel that is salmon, this one is white. Some grinders operat and say white is best and makes it easier for them to see the corner of the wheel, which improves their ability to align corners. This white stone is medium and 100 gritt.
For grinding wheels for chisel chain grinders. All wheels are 8″ X 1″X1″ 3/16. You will need a 1″arbor for this wheel.