• 1 x 3V CR2032 lithium battery

Two x 18-1/2 inch (960mm) rule digital angle rule that calculates angles quickly and accurately and is ideal for woodworking, construction, and machining.

• Digital display for angles.
• Stainless steel rule with metric/imperial scale, scale length 500mm and 18-1/2 inch.
• Measuring range from 000.0 deg to 360.0 deg, with accuracy of 0.3 deg.
• Rule locking function.
• Easy operation with two press buttons.
• Auto-shut off in 6 minutes.