Skip to content Skip to footer
About HEYI

Precision Tooling Experience Since 2004

HEYI's precision tooling experience dates back to 2004. Based in Shenzhen, China, we support manufacturers with PCD, CBN, carbide, micro and drawing-based custom cutting tools for precision machining.

We work with machining teams that need suitable tool geometry, edge condition and application support for small parts, close tolerances, abrasive non-ferrous materials, hardened steels and other demanding workpieces.

PCD cutting tool production workshop with precision tool grinding equipment
Application first

Cutting Tool Support Built Around the Application

Our scope covers precision turning, milling, drilling, reaming, boring, grooving, threading and application-specific custom tooling. Tool recommendations depend on the workpiece material, operation, machine setup, tool geometry and required result.

PCD and diamond-tool solutionsFor abrasive non-ferrous, composite and hard-brittle workpieces.
CBN toolingFor hardened steel, hard cast iron and hard-turning applications.
Carbide, micro and custom toolsFor small features, close-tolerance work and drawing-based geometries.
PCD cutting tool production workshop with precision tool grinding equipmentClose-up of PCD cutting tool grinding inside the workshop
Factory & quality

PCD Tool Manufacturing and Quality Control

PCD tool slotting and flute generation, cutting-edge generation and sharpening, precision grinding, inspection, and suitable tool repair or reconditioning are completed in the factory. The exact route depends on the tool geometry, workpiece material, machining operation and required result.

Send Your Drawing / Full RFQ
Working process

From Drawing Review to Tool Release

STEP 01

Review the inputs

Drawing or model, material and hardness, operation, machine, tolerance, finish, quantity and timing.

STEP 02

Define the tool route

Select the relevant geometry, edge preparation and manufacturing route for the application.

STEP 03

Manufacture and inspect

Use the relevant slotting, sharpening, grinding and magnified-inspection steps before release.

STEP 04

Delivery and follow-up

Confirm identification and order needs; assess repair or reconditioning when suitable.

Product families

Four Starting Points for a Tooling Review

PCD Tools

For abrasive non-ferrous, composite and hard-brittle workpieces.

View PCD Tools →

CBN Tools

For hardened steel, hard cast iron and hard-turning applications.

View CBN Tools →
Start a technical review

Talk With HEYI About Your Machining Application

Send the drawing or current tool information, workpiece material, operation, tolerance or surface-finish target, present problem, quantity and required timing. HEYI will review whether an existing product family or drawing-based custom tool is the more suitable starting point.

Subscribe for the updates!

Subscribe for the updates!