/ CP505E-12 We are sorry but the item (CP505E-12) you are looking for is no longer available Please reach out to us at custsupport@starrett.com or call at 978-249-3551 for assistance. There is a newer version of this product available CP505A-12 Combination Protractor The 300mm (12") Aluminium Combination Protractor is part of the popular ProSite 505 Protractor family. 3D CAD Files / Exploded Parts Diagram Login to see related product files. Or create an account.