Rapid Rule is a patented redesign of the traditional triangular scale. It’s unique shape instantly identifies the scale edge. Simply rotate the scale rod to locate the needed scale. Once located, it is retained... ready-to-use, every time you pick it up. All six scales read from left to right and you read only one scale at a time. Simply the best and easiest scale to use.

Rapid Rules are made in the U.S.A. of solid aluminum to professional standards. “It feels like a quality instrument. All the surfaces and edges are consistently well-finished; the numbers on the different scales are concise, and the divisions between numbers are fine and accurate....” J.K.,Fine Homebuilding (read the reviews).