DMT Aligner Replacement Stones Professional Machine The set includes Norton Hard

The set includes Norton Hard Arkansas Stones in a 3" Length:

Ookami Gold Shears Sharpening Instructional video gives you all the details

Chapter 1 - Safety Overview

The Coticule Multiform Stones are of uniform thickness rather than having a tapering thickness likes their cousin the Belgian Blue Multiform Stone

To properly flatten all of your water stones

DMT Aligner Replacement Stones Professional Machine The set includes Norton HardThese DMT stones are available in Extra Extra Coarse, Extra Coarse, Coarse, Fine, Extra Fine and Extra Extra Fine. Each stone measures 4 3 8 x 7 8 inches. These stones were designed to be replacement stones for the DMT Aligner Systems but can also be used without the systems.