| GENERAL CHARACTERISTICS ITEM DESCRIPTION | TO EXAMINE THE SHERICITY AND SURFACE QUALITY OF STEEL,GLASS AND SAPPHIRE PRECISION BALLS. THE INSTRUMENTIS UNIQUE THAT THE LENS SYSTEM IS SPECIALLY DESIGNED SO THAT 100 OF THE BALL CAN BE INSPECTED IN ONE SETTING,FROM 1/8 IN DIA TO 1 IN DIA BALLS CANBE EXAMINED USING A MERCURY VAPOR LAMPUSING TWO SETS OF CURVED MIRRORS DIMS 25.500 IN HEIGHT,12.000 IN DEPTH,12.500 IN WIDTH,WEIGHT 35 LBS |