The Norton India AO Combination Grit Benchstone produces keen, long-lasting edges with its unique combination of coarse and fine grit aluminum oxide abrasive. To improve sharpening and reduce clogging, use with oil. Ideal for clean deburring, these benchstones will produce sharp edges and quality finishes.

4″ Long x 1-3/4″ Wide x 5/8″ Thick,

Aluminum Oxide

Sharpening Stone Rectangle: Coarse & Fine Grade