Bosch GTL2 Laser Square
Bosch GTL2 Laser Level Square Accuracy: Up to 1/2-Inch at 30 Feet; Range: 30-feet; Includes (2) Adhesive Mounting Strips. Projects horizontal and vertical -Inch chalk lines-Inch on any surface. Alignment Guide for 90-degree Layout - Calculate and turn angles in 5-degree increments.