JIS B 0021

JIS B 0021 is a Japanese Industrial Standard that specifies technical drawing practices for mechanical engineering, including rules for dimensioning, tolerancing, and geometric tolerancing. It provides guidelines for creating clear and standardized engineering drawings to ensure consistency and interoperability in manufacturing and design processes. This standard is part of the JIS B series, which covers mechanical engineering standards in Japan.

Also known as: JIS B0021, Japanese Industrial Standard B 0021, JIS B-0021, JIS B0021 standard, Japanese drawing standard

Why learn JIS B 0021?

Developers should learn JIS B 0021 when working on projects involving mechanical design, CAD software development, or manufacturing systems in Japan or with Japanese partners, as it ensures compliance with local standards and facilitates accurate communication of design specifications. It is particularly useful for roles in automotive, aerospace, or industrial equipment industries where precise engineering drawings are critical for quality control and production efficiency.

Learning Resources

• docs: JIS B 0021 Standard Document
• docs: Introduction to Japanese Industrial Standards
• tutorial: Geometric Dimensioning and Tolerancing Basics
• docs: CAD and Technical Drawing Standards