Concise Ruler Circular Slide Rule 28N 100973 Dedicated Storage Case Included

Description

○ 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. It is a fundamental slide rule that can be used in various fields. ○ Types of calculations: General multiplication and division, proportion (exponential percentage), squares, and cubes. ○ Back side: Includes unit conversions for length, area, volume, mass, temperature, pressure, speed, etc. ○ Scales: D, C, CI, A, K (front side) ○ Comes with a dedicated storage case and instruction manual. ○ Size: Diameter (approx.) 84mm ○ Main material: Vinyl chloride ○ Made in Japan