SPI Electronic Universal Protractor Features include... Hardened stainless steel Measuring range: 0 - 360º Range selection: 1 x 360º, 2 x 180º, 4 x 90º Dual reading LCD display arc minutes/decimal degrees Acute angle attachment, 6" and 12" blades included Fine adjustment Preset function Resolution: 30" Accuracy: ±5' Shipped via ground freight only.
