Measure glass thickness without deglazing Measures overall thickness of double glazed units and single pane glass and other materials. Saves time by eliminating the need to deglaze and provides accurate measurements in seconds. GlassXpert has a Gclamp construction with a large 104mm opening allowing it to be used on thick door profiles and deep TiltandTurn windows. So its becoming a favourite tool of surveyors manufacturers and installers of windows doors and conservatories. Features & Benefits Measure windows without deglazing Durable steel frame and ruler Easy to use slide ruler Doublesided metric and imperial gauge Supplied with tough plastic carry case Tough cast steel frame with a durable purple powdercoating and supplied with tough protective carry case. Did you know Although the primary use of this gauge is by window fitters to measure the thickness of doubleglazed windows it can be used to accurately measure the thickness of any material. ...