Special Features:

Sthe tool consists of four subassemblies one each for the igv and stages1, 2 & 3. Each subassembly is compromised of an inner sleeve of approximately1 inch diameter x 1-1/4 inch long to which includes a pointer tab extending perpendicular to the body. The inner sleeve is mounted in a close-fitting outer arm, by a retaining ring that allows the inner sleeve to rotate. The armfeatures a flat plate with a radiused edge formed in a 120-degree segment ofa circle with the "open" and "close" limits marked on the upper surface. A slot is machined in the arm 90 degrees to a segmented section. A knurled headpost having an internal thread, which matches the vane stem threads, is captivated to the arm slot to prevent removal. Serd number 3082

Properties:

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.