The Grip 29440 24-Inch Adjustable T-Square is perfect for marking cut lines on sheets of plywood, OSB, drywall and other board materials. It can also be used as a guide when cutting drywall. Features: * Head adjusts to any angle * Folds flat for easy transport Inspected for accuracy What"s In The Box: * Grip 29440 24-Inch Adjustable T-Square