The 3JAWCAL greatly reduces the time spent when measuring the thickness of insulated glass. To use, just slide the jaw open and place around the sash frame. Then slide Close until you hear the adjusting screw touch the glass, and read the exact thickness on the scale of the caliper. Measures glass thickness without having to remove trim | Ideal for measuring insulated glass in sliding doors and windows | Easy-to-Use | Measurement Scale Visible on Either Side | 3" and 6" Jaw Available.
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