An RH Preyda Surgical Black Arkansas bench stone, 8" x 2" x 1/2". Ultra-fine density — RH Preyda calls this the hardest and finest Arkansas grade, used for precision honing and polishing and for testing gold content. Cut to size and finished for flatness. 4", 6", and 8" x 2" x 1/2". Natural novaculite from the Ouachita Mountains, Arkansas. Made in the U.S.A.

The 8" Surgical Black. Ultra-fine. Last stone before you stop.

Features

• Surgical Black Arkansas, ultra-fine density
• 8" x 2" x 1/2" (203.2 x 50.8 x 12.7 mm)
• 100% natural novaculite, finished for flatness
• RH Preyda states these stones do not require lapping or flattening
• Made in USA