The Insize 2176-300 Digital Protractor is a must-have tool for professionals and homeowners alike. It will help you measure angles accurately, whether it’s in carpentry or other construction projects. The digital protractor features an on/off button and automatic power off function. With a length of 12 in., the stainless steel angle finder has a range of -360 degrees to 360 degrees. Its blade graduation is 1/32 in. on one side and 1 mm on the other, while its accuracy is +/-0.3 degrees. The Insize Digital Angle Finder will make measuring angles quick and easy, making your next project go smoothly.