48" "The Original" Aluminum Adjust-A-Square® T-Square

MODEL #:  ADS48

Quickly and easily adjust the head to any angle for versatile use, while it locks firmly at 90° for precise markings. Made from heat treated aluminum, this adjustable T-square has a thick head and blade with easy to read 1/8" thermal-bonded graduations for long-lasting durability. Common angles are etched at 30°, 45°, 60°, and 75° for efficient repeat measuring. Its anodized finish protects against rust and corrosion, while the robust aluminum blade serves as a straight edge for cutting precise lines.

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ADS48
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  • Effortlessly adjust the head to any angle for enhanced versatility

  • Head and blade lock firmly at 90° for precise and accurate markings

  • Constructed with heat treated aluminum and robust ¼" thick head and blade

  • Easy-to-read thermal-bonded 1/8" graduations

  • Blade features 1/16" graduations readable in both directions along with 16" center markings

  • Etched markings for common 30°, 45°, 60°, and 75° angles provide efficient repeat measuring

  • Anodized finish guards against rust and corrosion ensuring long lasting performance

  • Sturdy aluminum blade functions as a straight edge and prevents utility knife slippage

  • Designed to fold flat for convenient storage and transportation

Warranty:

1 Year Warranty

Johnson's adjustable T-square is an essential tool for accurate and efficient drywall installation and is perfect for measuring and marking angles and cut lines on plywood, drywall, OSB and other board materials. The head and blade lock securely at a precise 90° or adjusts to any angle for vaulted ceilings and stair layouts, as well as framing, roofing, carpentry or general construction tasks. Its thick blade also serves as a reliable straight edge for cutting lines.

Johnson Level Rapid Response Center for Repair and Service
Contact customer service at service@johnsonlevel.com or call 888-953-8357 from M-F 7am-5pm CT.


How to use a Drywall T-Square

Product Details

Quickly and easily adjust the head to any angle for versatile use, while it locks firmly at 90° for precise markings. Made from heat treated aluminum, this adjustable T-square has a thick head and blade with easy to read 1/8" thermal-bonded graduations for long-lasting durability. Common angles are etched at 30°, 45°, 60°, and 75° for efficient repeat measuring. Its anodized finish protects against rust and corrosion, while the robust aluminum blade serves as a straight edge for cutting precise lines.



Specifications

Warranty:

1 Year Warranty

Application

Johnson's adjustable T-square is an essential tool for accurate and efficient drywall installation and is perfect for measuring and marking angles and cut lines on plywood, drywall, OSB and other board materials. The head and blade lock securely at a precise 90° or adjusts to any angle for vaulted ceilings and stair layouts, as well as framing, roofing, carpentry or general construction tasks. Its thick blade also serves as a reliable straight edge for cutting lines.

Support

Johnson Level Rapid Response Center for Repair and Service
Contact customer service at service@johnsonlevel.com or call 888-953-8357 from M-F 7am-5pm CT.


How to use a Drywall T-Square

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