Slide rule converts viscosities

A free, pocket-sized slide rule includes data showing the comparative equivalence of several viscosity grading systems -- ISO, SAE, AGMA gear oil grades, and NGLI grease consistency grade classifications.

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A free, pocket-sized slide rule includes data showing the comparative equivalence of several viscosity grading systems -- ISO, SAE, AGMA gear oil grades, and NGLI grease consistency grade classifications. Converting tables show cSt to SUS viscosity standards at the same temperatures.

Royal Lubricants, Inc.