【Third Generation Angle Protractor】Combine ruler and digital protractor angle finder, millimeter and inch scale. That makes it easy to measure inside and outside angles.

【Durable Rulers】Well-made Enhanced ABS angle finder tool. Black ruler with white scales for easy reading and long-term use. Comes with 2 CR2032 .

【High Accuracy】Angle measurement tool has a large LCD display for easy reading. Folded length: about 7.5 inch/220mm. Total length 400mm. Measuring range: 0~999.9°; Accuracy ± 0.3°; Resolution 0.1°.

【Locking Function】Angle measuring tool locks at any angle. When taking large angle or reverse measurements, long press the Rev button to read the display upside down. The Zero button reset the angle meter.

【Wide Application】The digital protractor is a good choice for projects, like woodworking/carpenter/construction and daily use.