Calibrated to /- .020º at crossing and top to bottom, insuring accuracy, especially on longer 48" cutsHeat-treated aluminum construction is long lasting and gives metal it's spring or "memory"Anodized finish helps prevent rusting, extends life of printCrosshead is angled for added strength and durabilityAircraft alloy steel rivets
Wallboard Drywall T-Square, 18 X 47-7/8 in, Aluminum, Anodized
Brand: Walboard Tool, Model: 88-012/WTS-50, Size: 48 Inch