Check the listing for details. Pro 360 Digital Protractor, 360° with magnetic v groove base. Cambx. Condition: Used. Listed at 49.99 USD. This high-quality digital protractor is a must-have for any professional or academic setting. With its absolute brand name, you can trust that this rectangular head protractor will accurately measure angles up to 360 degrees. The magnetic v groove base ensures that this protractor stays securely in place, making it easy to use and transport. Perfect for measuring angles in metalworking and manufacturing, this digital protractor is a valuable tool for any industry professional. Its measuring range of 0-360 degrees allows for precise and accurate measurements, while its durable construction ensures long-lasting use. Whether you're a student, teacher, or engineer, this protractor is sure to be a reliable and essential addition to your toolkit.