These are 8" x 3/4" wheels.One slotted and one already coated.Comes with what you need to get started.Good directions and enough silicate carbide to redo your wheel many times.Also the goose grease(lube) and compound for the polish.Wheel sharpening is the way to go for fast pro edges.They can be dangerous,so dont be stupid.Read and understand the directions.#1 dont be stupid tip.Never go in edge up to the wheel.Will fit about any grinder.I have a couple extra sets i dont need.Kinda heavy so $38.00 shipped medium flat rate priority.No added fees for paypal.
