Dan's mineral oil

Its primary use is for blades that will be laid in one position and will not be moved while being sharpened

but it's not mandatory

Never dry stones near heat

washita 1 stone edge pro Dan's mineral oilWashita sharpening stones are used for sharpening knives on Hapstone and Edge Pro sharpeners. Washita is the most well known among vintage natural stones. The estimated grit for Washita #1 is 1000 3000 JIS. Washita stones are mounted on high quality aluminum blanks. Washita stones are mined in the Ozark Mountains in the state of Arkansas in the United States. Washita stones consist of silica, but unlike synthetic abrasives, do not consist of