With machined edges, a satin-chrome finish, and etched and black-filled markings, these steel protractors are accurate and easy to read. All have double 0° to 180° graduations in opposing directions for reading direct and supplementary angles.
Available with a rectangular or a semicircular head, each standard protractor has a fixed-length blade that projects 6". The protractor with depth gauge has a rectangular head with a length-adjustable blade graduated in 32nds on one face and 64ths on the other. Each has a knurled lock nut for fixing the arm at any angle.
Made in USA.