This Xpert Glass Measuring Gauge is used to measure glass-sealed units.

Measure the thickness of glass-sealed units without disruption.  Simply wrap around the glass to give an accurate measurement.

Key features:

• Body made of cast steel
• Supplied in a hard-back carry case
• 104mm Opening
• Rule is double-sided with imperial & metric measurements
• Used to measure glass-sealed units without the need to remove the unit