A burr stone is used to remove the burr from the edge of your blade. It is one of the stones that you need to sharpen your ice speed skating blades.
The Bont diamond short track burr stone has a grit of 600. That is an intermediate grit level that is not too harsh that it will damage your blade but also not too fine that it won’t get the burr off the blade. It’s the perfect grit level for short track blades.
BONT Burr Stone-Size: Width 25mm length 70mm thickness 5mm 600Grit