Professional grinding wheels for Silvey, Simington and T&S chisel chain grinders. These wheels are 8" in diameter and 3/16" thick with a 1" arbor. Wheels are made of vitrified aluminum oxide and are very fine grit compared to other grinding wheels. This means they leave an unbelievable edge, but you cannot remove material quickly without burning the cutter. They must be dressed with a diamond before use. Choose from the color wheel below.