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 5950-01-283-7061
NSN 6650-01-555-8819
NSN 6240-01-131-4454
NSN 6320-01-433-3953
NSN 6645-01-381-6084
NSN 7035-01-123-8723
NSN 5915-01-352-8951
NSN 6610-00-480-1200
NSN 4140-00-350-0181
NSN 7035-00-337-8745
NSN 6320-00-731-6134
NSN 5945-01-250-1037