Jo-Di Diamond Gauge W/Book Steamaster these drills combine excellent stock

these drills combine excellent stock removal with a clean cut finish

controlled dressing action

The included 13W bulb (113

accurate center-finding at the jeweler's bench

Jo-Di Diamond Gauge W/Book Steamaster these drills combine excellent stockThe Jo Di Diamond Gauge with Book allows professional jewelers to accurately estimate the estimated weight of a diamond without removing the stone from its mounting. Using measured width and depth values referenced against the included book, this gauge supports calculations for both round and fancy diamond shapes making it an efficient tool for appraisers, bench jewelers, and estate jewelry professionals who need reliable weight estimates without the