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Check all your door gap clearances with one tool. Made of Aluminum, anodized and laser etched, will last a lifetime. Easy to use, small, fits in your shirt pocket.

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Model DGG
Precise measurements for
3/8", 1/2, 3/4", 1", 1-1/4", 1-1/2", 2" and 4"
will allow you to verify compliance with ASME A17.1-2000:
Section 2.5 Clearance Between Car and Landing Sills
Section 2.11 Entrance frame clearances
Section 2.12 Closed Position of Hoistway Doors
Section 2.12 Restricted Opening of Hoistway or Car Doors
Section 2.14 Closed Position of Car Doors Or Gates
and more...

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