REVEALER

MEASURED MARKING AND LAYOUT GAUGE FOR USE BY CONSTRUCTION TRADESMEN IN THE NATURE OF A SQUARE RULER WITH A TRANSPARENT SLIDABLY EXTENDABLE COVER IN LOCKING ENGAGEMENT WITH THE SQUARE RULER FOR SIMULTANEOUSLY MARKING BOTH HORIZONTAL AND VERTICAL CUTS REPETITIVELY, PARTICULAR ON INSIDE CORNERS OF 90 ANGLE WORK PIECES, SUCH AS DOOR JAMBS AND WINDOW JAMBS FOR THE INSTALLATION OF CASINGS