DMT Double-Sided Diafold Kit Professional Machine and the Spyderco fine is

and the Spyderco fine is comparable to what other brands call an extra-fine

Wolff Industries Part # 33003

use Coarse Surfacing Compound

but it is an extremely coarse 24 grit

DMT Double-Sided Diafold Kit Professional Machine and the Spyderco fine isDMT Double Sided Diafold Kit now includes a Diafold Serrated Knife Sharpener. Save compared with list price for the combined items. The DMT Diafold line of sharpeners has always been one of the most versatile sharpeners. The patented DMT Diamond surface not only sharpens quickly, but is also extremely durable and long lasting. When combined with the Free Serrated Knife Sharpener, this kit is able to sharpen both straight and serrated knife edges.