- About JIAYI
Precision Without Compromise.
Built Since 2009.
We design and manufacture precision carbide cutting tools where engineering accuracy, material science, and manufacturing discipline meet global industrial demand.
- Company Overview
Founded in 2009. Built for Precision.
JIAYI was founded in 2009 in Shenzhen with a single mandate: to manufacture precision cutting tools that meet the tolerance demands of global hydraulic OEM manufacturers — without the markups and lead times of traditional distribution. Today, our 1,800 m² facility produces over 8,000 tools per day for customers across 15 countries.
To deliver precision cutting tools and custom engineering solutions that help manufacturers achieve greater accuracy, efficiency, and reliability — from cartridge valve cavities to aerospace-grade hole making.
To become the preferred factory-direct tooling partner for hydraulic, aerospace, automotive, and medical manufacturers worldwide — recognized for micron-level precision and dependable global support.
Our Commitment
At JIAYI, quality is not assumed — it is verified.
Every batch is checked on Zoller optical measurement systems and Mitutoyo CMMs. Every shipment includes a full inspection report traceable to the operator, machine, and grinding wheel used. We believe true manufacturing partnership begins with transparency, precision, and respect for your production schedule.
- Why Choose Us
Engineered for Demanding Applications.
At JIAYI, we don’t just manufacture cutting tools — we engineer precision solutions that help manufacturers improve machining efficiency across hydraulic, aerospace, automotive, and medical applications.
Micron-level accuracy, advanced CNC grinding, and strict quality control ensure consistent results on every tool.
We produce standard and custom cutting tools from your technical drawings with fast turnaround times.
Top-grade carbide, PCD, PCBN, cermet substrates, and advanced PVD/CVD coatings for the toughest materials.
Our tools meet major international hydraulic and industrial standards — Sun Hydraulics, Parker, Bosch Rexroth, and more.
High production capacity, 24-hour quote turnaround, and on-time worldwide delivery from our Shenzhen facility.
Manufacturers across aerospace, automotive, medical, and hydraulic industries rely on JIAYI for dependable tooling.
A Commitment to Precision
From substrate selection and CNC grinding to in-house coating, laser marking, and final metrology, every step happens under one roof in Shenzhen. Vertical integration eliminates hand-offs that introduce variation — and lets us guarantee runout under 0.005 mm on standard catalog tools.
- Testimonials
Trusted by Procurement Teams Worldwide
- 5.6K
- Google Rating
Our technical team provides comprehensive design support, ranging from standard specifications to complex, customized solutions. Hear from procurement and engineering teams who rely on JIAYI every day.
New York
“JIAYI delivered SAE J1926 port tools that matched our drawings to within 5 microns. Lead times have been consistently under three weeks.”
Boca Raton
“We switched our Sun Hydraulics cavity tooling to JIAYI and reduced unit cost by 38% with zero impact on tool life or surface finish.”
Miami Beach
“The custom PCD reamers JIAYI produced from our CAD files outperformed our previous supplier by 2x on tool life in CFRP machining.”
Hialeah
“This manufacturer's tools feature an optimized helical flute design that ensures smooth, unobstructed chip evacuation—even without the use of high-pressure internal coolant.”
- Our Team
Expertise Behind Every Tool We Ship.
Our strength lies in the engineers, grinders, and quality specialists who guide every project with integrity, expertise, and precision. Together they deliver the factory-direct tooling support our global customers depend on.
Application Engineering
Custom Tool Design & Support
CNC Production
5-Axis Grinding Operations
Quality Assurance
Metrology & ISO 9001 QC