Aluminum Oxide Silversmiths' Oval Flat Tapered Sides Stone 4" x 7/16" x 3/16" - 1/8" Grit:Fine The stop ring (7) can

The stop ring (7) can be set for a convex bevel with a screw (8)

Unlike some water stones

Easily supports blades over 36” long

That's 40μm to 0

Extra Fine (E)

Aluminum Oxide Silversmiths' Oval Flat Tapered Sides Stone 4" x 7/16" x 3/16" - 1/8" Grit:Fine The stop ring (7) canAluminum Oxide Stones Aluminum oxide stones excel at refining surfaces, offering a finer finish than silicon carbide stones. Their durability and ability to hold their shape well make them ideal for touching up special instruments, cleaning tools and dies, and for honing to close tolerances. These stones are a good choice when a high quality finish and accuracy are critical. Oil Filled These Aluminum Oxide Stones are filled with oil in manufacturing,