Irwin 1794476 Aluminum Drywall Square, 48"

Highlights:

• Aluminum
• Size : 48" x 22"
• Durable, rust-proof aluminum body
• Guaranteed accurate for life
• Hi grade aluminum frame, rugged & durable
• Heavy duty box beam & I-Beam levels
• Thermally bonded graduations with anodized finish
• Used for measuring and marking sheets of drywall, plywood and other building materials