Sharpening - Black Hard Arkansas Stone AC-15

AC-15; Black Hard Arkansas stones are one of the world's best natural sharpening stones. The Black Arkansas is the finest grade ordinarily available. These are too fine for anything but the final edge on very sharp blades and tools. These are about 4"x2"x1/2", and come in a wood box.

Dimensions of stone
Length: 4"
Width: 2"
Depth: 1/2"