Felker's® diamond saw blades are some of the best we've every seen for heavy duty slabbing. Long lasting and a powerful workhorse of a blade. They come in sizes ranging from 6" to 14". These are great slabbing blades for someone who is looking to remove material quickly and easily. They are a thicker blade than some you might be used to, but for the job, they're hard to beat. No custom arbor sizes are available from the factory. For dimensions: the first number is the blade diameter, the second is the core thickness, the third is the rim thickness, and the remaining number is the arbor hole (note: these blades do not have knockouts).