Manufacturing precision tools since 2009
Precision.
Performance.
Reliability.
High-precision cutting tools and customized solutions for Aerospace, Automotive, Hydraulic Systems and Precision Manufacturing.
Why JIAYI
Factory, Not Trading Company
We manufacture every tool we sell — in our own 1,800 m² facility in Shenzhen, with our own engineers, machines, and coating lines.
Factory Direct Manufacturer
No middlemen. You deal directly with our engineering team in Shenzhen — better pricing, faster decisions, full technical support.
OEM & ODM Available
Send your drawings — we engineer, prototype and manufacture to your exact specifications with full dimensional inspection report.
Walter & Rollomatic Grinding
Same 5-axis grinding machines used by European aerospace tier-1 suppliers. ±0.005 mm tolerance on every production batch.
Engineering Support
Dedicated application engineers respond within 24 hours. Substrate selection, coating, geometry — all optimized for your application.
Global Delivery
DDP shipping to 50+ countries. Full export documentation, CoC, CMM report, and material certificate with every shipment.
Product Catalogue
Cutting Tools for Every Application
200+ standard tools across 7 categories — all in carbide, PCD, PCBN and HSS-Co. Custom geometries available from your drawings.
Composite Material Machining
PCD tipped and diamond coated tools designed for clean, delamination-free machining of carbon fiber, GFRP and other composite stacks.
Milling Cutters
High performance milling cutters with TiAlN and AlTiN coatings for steel, stainless and superalloy machining.
Hole Making Tools
Solid carbide drills, indexable drills, reamers and boring bars engineered for tight tolerance hole production in hydraulic manifolds and valve bodies.
Cavity Tools
Complete range of cavity form tools compatible with Sun Hydraulics, HydraForce, Parker and Bosch Rexroth cartridge valve standards.
Industries We Serve
Powering the World's Critical Industries
About JIAYI
Your Trusted Partner in Precision
Founded in 2009 in Shenzhen, JIAYI is a factory-direct manufacturer — not a trading company. We operate our own 1,800 m² grinding facility with Walter and Rollomatic 5-axis CNC systems, in-house PVD/CVD coating lines, and Zoller 100% optical inspection.
We serve 50+ countries, producing cavity tools, port tools, reamers, drills, end mills, and custom carbide solutions for hydraulic OEMs, aerospace, medical, and automotive manufacturers.
Explore More
Product Catalogue
200+ standard tools across 7 categories
Industry Applications
Aerospace, Hydraulics, Medical, Automotive & more
Technical Blog
Application guides, material notes & machining tips
Download Center
Product catalogs, tech docs, ISO certificates
Ready to Get Started?
Ready to Boost Your Machining Efficiency?
Upload your drawings now. Our engineering team will respond within 24 hours with pricing, lead time, and the optimal substrate and coating recommendation.
ISO 9001:2015 Certified · ±0.005 mm Tolerance · 50+ Countries Served