Dan's Whetstone Black Hard Arkansas (Ultra Fine) Pocket Knife Sharpening Stone  4" x 1 5/8" x 1/2

• This Hard Leather (Ultra Fine) Arkansas pocket sharpening stone
• Genuine Leather Pouch included
  
• Size: Approx.  4" X 1" X 5/8-1/2"
• The coarsest, most versatile and most popular of the Arkansas stones
•  Soft Arkansas stones are used to quickly put an initial edge on dull or neglected knives or other cutting tools.
• This is a natural stone and color can vary

Genuine Arkansas stones are 100% quarried in the Ouachita Mountains of central Arkansas. They are highly sought after worldwide for their superior ability to sharpen knives and woodworking tools, as well as to put surgical quality edges on a wide variety of instruments Arkansas stones produce these fine edges s with less wear that man-made stones. Arkansas stones are classified as Novaculite, which is extremely hard and fine grained rock containing almost pure silica. These stones are classified in 4 grades and progress from Soft to Hard to Translucent and finally to Black. Each grade is based on the specify gravity or density of the mineral and not the "grit" or particle size.