Cres material; 10/1 div proportions; replaceable points; includes 8 spare points, 4 short and 4 long, in parts tube; includes screwdriver; with precise rack and pinion movement; matte-nickel-silver finish; case velvet lined
An instrument consisting of two branches or legs which are pointed at both ends and joined by a sliding pivot, the position of which may be so adjusted that the ratio of the distance between one pair of points and the pivot and the distance between the other pair of points and the pivot may be varied. This combination produces the variable ratios. Used for making proportional transfer of measurements.
Classification: Drawing, marking-out or mathematical calculating instruments, nesoi
NSN 5905-01-272-1570
NSN 6220-01-367-0567
NSN 5835-01-197-5673
NSN 6150-00-854-0289
NSN 5965-00-997-5764
NSN 2925-00-225-5386
NSN 5965-01-234-6844
NSN 5905-00-393-0646
NSN 5855-00-797-8217
NSN 5925-01-227-4631
NSN 6130-01-160-9478
NSN 5905-01-396-9013