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Weems & Plath 18 Parallel Rules Aluminium


The 18 Aluminum Arms Parallel Ruler features aluminum arms that join two clear acrylic rulers. An essential item in any proper navigation kit, the Aluminum Arms Parallel Rule is used to plot direction on a nautical chart. It is comprised of two straight-edges hinged so that they maintain the same angle. By alternating the moving edge, and securely holding down the non-moving edge, you can move the aluminum parallel ruler about the chart while still maintaining the same angle.


#NWP138 List Price $32.99Only $26.99



  • Additional Information
UPC/EAN: 721002001382
Weems & Plath Item #: 138
NSA: 6675-01-573-2795