Crystal grindstone M-3, comes in a box of 3/クリスタル砥石Mー３(箱売り)

This whetstone has a softer texture than 三和砥石(Sanwa-whetstone) Used for general purposes.
Size: 120*50*40mm

＃400（red）rough texture, for base whetting
＃600（blue）rough texture, for base whetting
＃800（plain）medium texture, for middle coat whetting
＃1000（black）medium texture, for middle coat whetting
＃1500（yellow）fine texture, for final coat whetting
＃2000（green）fine texture, for final coat whetting
＃3000（brown）super fine texture, for final coat whetting