Use this lap for blueprinting your faceting instrument. See videos on blueprinting processes on the Official Facetron Videos page, on the Official Ultra Tec Videos page, and on the Learn More Faceting page.
Take care to protect this lap from gouges, scratches, etc., as such things will harm its usefulness for blueprinting and alignment procedures.
Use this lap to support metal plated “topper” roughing laps, and to support mylar-type specialty polishing laps.
