CHUAN HONG – Ring Gauge Manufacturer, Plug Gauge Manufacturers & Thread Cutting Tool Specialist
Precision Tool Expert and Global Guide to Screw Thread Standards
Founded in July 1983, CHUAN HONG PRECISION TOOL MFG. CO., LTD. has built its reputation as a trusted ring gauge manufacturer, reliable plug gauge manufacturer, and a supplier of premium thread cutting tools. With decades of experience in precision measurement and thread tooling, CHUAN HONG provides certified, inspection-backed products for industries that demand exceptional accuracy.
To guarantee consistent quality, we have invested in advanced inspection technologies such as German-made tool microscopes and universal length measuring gauges. Every ring gauge, plug gauge, and thread cutting tool is delivered with a certificate of inspection, assuring global customers of our manufacturing integrity.




Our Products – Ring Gauges, Plug Gauges & Thread Cutting Tools
As a top-tier ring gauge manufacturer, CHUAN HONG supplies high-precision gauges for thread verification across various international standards. Our plug gauge manufacturers division ensures tight tolerance and consistent durability in all plug-type products. In addition, we design and deliver high-performance thread cutting tools for industrial threading operations in metalworking, automotive, and aerospace sectors.
Learn moreIndustry Applications – Precision Gauges and Thread Cutting Tools that Power Innovation
As a ring gauge manufacturer with global reach and a reliable source among plug gauge manufacturers, CHUAN HONG supports high-precision manufacturing around the world.
Our gauges and thread cutting tools are trusted by manufacturers in:
Why Choose CHUAN HONG – Ring Gauge & Plug Gauge Excellence
As experienced plug gauge manufacturers and a premium ring gauge manufacturer, we are committed to delivering:
- Over 40 years of experience
- Strict in-house quality inspection
- Competitive pricing
- Long-term reliability in every thread cutting tool and gauge product
We aim to be more than a supplier — we are your strategic partner in precision engineering.
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High Quality
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Good Service
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Creativity
Latest News-Exhibitions & Industry Updates
Stay updated with CHUAN HONG’s latest milestones and announcements in the world of thread cutting tools, plug gauge manufacturing, and ring gauge production. Explore our exhibition schedule, technology news, and innovation updates from Taiwan and abroad.
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2025.03.03Domestic Exhibition
Taipei Int'I Machine Tool Show
March 3-8, 2025
【Nangang Exhibition Center, Hall 1 & Hall 2 TWTC Hall 1】
【Booth No. A0905】 -
2025.02.26Media Reports
CHUAN HONG launches reduced-stroke planetary roller screw | Machine tools | Business information | Economic Daily
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2024.07.03Domestic Exhibition
Shanghai International Automotive Manufacturing Technology & Materials Show (AMTS 2024)
July 3rd-5th, 2024
Shanghai New International Expo Center (Halls W1-W5, and E1-E2)
CHG Booth No.:W2-D32