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This folding parallel rule features transparent blades for easy reading with non-skid pads and sturdy aluminum links provide the right amount of tension for drawing a line parallel to another line or reference point.
This dual-purpose ruler also works as a compass, allowing the you to make circles from 1/16" to 12" in diameter. A useful tool for draftsmen, students, artists and crafters who require precise, measured lines. Great for mathematic calculations,...