Johnson Level & Tool Manufacturing ADS48 48" "The Original" Aluminum Adjust-A-Square T-Square

• Extruded aluminum 1/4" thick blade and head

• Clear protective anodized finish will not rust or corrode

• Screened, thermal-bonded black 1/8" and 1/16" graduations

• Large, bold easy reading graduations

• Head adjusts to any angle

This T-square is a must-have for any drywall hanger - from professionals to homeowners. It's 48" length conveniently matches the height of drywall panels, making it a sure fit for most drywall applications. The precision-machined head and blade lock together for a perfect 90° angle, while it can also be adjusted for any angle for unique projects such as vaulted ceilings.