Irwin 1794476 Aluminum Drywall Square, 48"
- 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