Vinyl Circular Ruler 84mm Regle 30 Cm Concise Ruler 28N 100973 English Ver. Circular Circular Slide Rule 27N (this is the most popular circular measuring measuring measuring that is not added, subtraction, and it is a basic calculation scale that can be easily calculated such as multiplication, division, quadruple and triplysis, and is used in all fields. Top 5 Best Slide Ruler For Engineers (Trusted Choices by Experts) of 2025 are listed for unit conversion Scale: D, C, CI, A, K (surface) Dedicated storage case, instruction manual included., Size: Diameter: Approx., 3., 3 inches (84 mm) Specifications of Slide Rule No.28N This is the English specification product of the most popular circular slide rule, capable of calculations beyond addition and subtraction, such as multiplication, division, squares, and cubes This is an English specification product of calculation scale No. New Circular Slide Rule: Instruction For Use | Division (Mathematics) | Numbers Main Material: Vinyl chloride
