Product size: 150 x 25 x 10 mm (6" x 1" x 3/8")

6 x 25 mm was so close to one of the Russian industrial standard sizes for diamonds - 100 x 25 mm

You can quickly and easily activate and deactivate the magnet by raising and lowering it

And they share the same problems: they damage sharpening stones and they are damaged by sharpening stones

ruby ceramic stone for kmex Product size: 150 x 25Ruby Ceramic Sharpening Stones are used for sharpening knives on KME and Hapstone knife sharpeners. Ruby stones are made of Alumina ceramic with a high hardness rating and estimated grit approximately 3000 JIS. Ruby Ceramic scarcely wears over time. Extra fine ceramic stones provide a super finish for the cutting edge. Ruby Ceramic is preliminarily lapped and does not require lapping after purchase. Ruby Ceramic stones should be used with oil as a