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 6645-01-441-0937
NSN 5996-01-170-1915
NSN 4140-01-149-1459
NSN 5930-01-422-0537
NSN 6145-01-459-4472
NSN 5895-01-628-8307
NSN 5950-01-485-0246
NSN 5996-01-377-9730
NSN 6320-01-425-1417
NSN 6150-01-617-3903
NSN 6240-00-427-7448
NSN 5905-01-153-1187