A flat, steel plate of rectangular, square or semicircular shape, graduated in degrees. A pivoted arm is attached to the plate by means of a stationary bolt and thumb nut which locks the arm in any desired position. Used primarily in the metal working trades for laying out and transferring angles, scribing lines, and checking clearances on end mills and the like. Excludes protractor, one arm; protractor, two arm; protractor, three arm.
Classification: Dis calculators, slide rulers and other mathematical calculating instruments
NSN 5905-01-278-9000
NSN 6620-01-314-8605
NSN 6110-00-429-4777
NSN 2925-00-373-8837
NSN 5996-00-650-3481
NSN 6150-01-471-6198
NSN 6145-01-488-1256
NSN 6150-01-120-9348
NSN 7035-01-626-3136
NSN 4140-01-197-8148
NSN 6135-01-223-3869
NSN 5945-01-196-6030