contains significant proportion of Fe-oxides and hydroxides

It's very important to keep a sharpening angle consistent on a guided knife sharpener

BORI-LUBE 10 is a water-based lubricant to be used with all Boride sharpening stones during sharpening in order to clean

it should be even better for soft steel

At one end it has a thread for connection to the holder of the K03 sharpening system

chosera stone set contains significant proportion of Fe-oxidesChosera sharpening stones are used for sharpening knives on Hapstone and Edge Pro knife sharpeners. Chosera is a high end series from Naniwa made of aluminum oxide with the magnesia binder. The magnesia binder gives Chosera excellent sharpening quality and performance, and high wear resistance. We offer two Chosera sets: The recommended set consisting of 4 Chosera stones (from 400 to 10K grit) plus complimentary silicon carbide 120 grit, and The full