A measuring instrument commonly used in the machinist trade for setting or checking bevels, transferring angles, checking cutter clearance, laying out angles and scribing lines. Consists of a rotatable disk, graduated in degrees, mounted on a metal frame base, and an adjustable steel blade or scale which is locked in position by a thumb nut, or clamped by an eccentric stud. May also be equipped with one or two small auxiliary vernier scales which enable a more accurate reading. Excludes protractor, one arm; protractor, two arm; protractor, three arm.
Classification: Dis calculators, slide rulers and other mathematical calculating instruments
NSN 6685-00-923-8631
NSN 6685-01-525-7586
NSN 5930-00-353-0442
NSN 5960-01-428-4471
NSN 5905-01-597-5476
NSN 5985-01-576-9537
NSN 5985-00-983-4751
NSN 5935-01-258-3430
NSN 5920-01-189-9248
NSN 5985-01-397-8024
NSN 5990-00-103-0528
NSN 7035-01-076-4067