The process of removing the chrome finish from a steel shaft or the layer of paint from a graphite shaft prior to installation of the shaft into the head. Preferred abrading methods include sandpaper or a belt sander.
to dull a platform edge so as to strengthen it in preparation for billet or pressure flaking. Go here to read an article that contains information on abrading. The piece of grinding wheel or stone that is used for abrading is called an "abrader."