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 5920-01-558-7169
NSN 5945-00-349-7701
NSN 5999-01-159-3162
NSN 6240-01-549-3531
NSN 5920-01-082-7497
NSN 6105-01-452-5274
NSN 6645-00-401-5563
NSN 6240-01-585-5875
NSN 5935-01-047-8506
NSN 6320-01-198-4024
NSN 5999-00-701-4815
NSN 5895-01-599-6304