Was in PohNee's place this afternoon~ just hanging around (T_T) since business is slow this festive season....~ And i finally meet the brake disc skimming fella for the first time~ ^^
* only to find out you can actually buy this tools off the shelf.... *_*
The tools is secured to the two lugs where the original brake caliper were.
then set the correct off sets for both carbide steel knife for the both side.
where the knifes will only 'touch' the disc a bit~ then start your engine~ and set in to 3~4th gear and let it maintain rev 2~3k~ and slowly 'screw' in the knifes~
and slowly repeat the skimming process until the surface is even~
walla~ nice clean-n-flat surface~