Cratex Square Edge Medium, Fine and X-Fine

7/8" x 1/8" Square Cratex wheels 110.866 Medium (Dark Brown) 110.867 Fine (Reddish Brown) 110.868 X-Fine (Green Grey) Cratex is a manufacturer of specialized abrasives products used primarily for metal, glass and lapidary conditioning and finishing. These products have abrasive grain mixed homogeneously throughout the rubber so that as the product wears down, sharp, new grains are constantly being exposed. This allows the products to perform the same from start to finish.