2 In 1 Digital Angle Ruler：protractor has the function of a ruler and angle measuring tool. Digital ruler and protractor combination for easy measuring inside and outside angles. Ideal for use in accurate woodworking, construction, or drawing. Measure 360 Degrees：hinge mechanism on the angle rule allows a full 360-degrees to measure inside outside and reverse angles. withhold function to store measured angle in memory and zeroing button to reset angle finder tool at any time. Lock The Knob：digital angle finder which can keep the angle constant during the measurement process; the positioning hole design can hang the angle meter, and it also has a data saving function to help users effectively record the angle. Urable And Simple：ruler made for durability, could be well used in various fields besides the angle ruler, straight ruler, and square ruler. with a backlit LED display, data can be read clearly even in low-light situations. Wide Application：functions digital angle gauge and a protractor many uses like checking the angle of the blade on the table saw or accuracy of miter saw , making angle cuts or measurements trim or wall angle measuring. great gift for woodworkers, constructor DIYers., Manufacturer: HGID-5540