Six Families,Precisionin Every Cut
The Full Range of Carbide Inserts
Tooling Inserts · 2026 Catalog
Catalogued to ISO standards by geometry, workpiece material and machining operation. Open any family for the full model list, technical drawings and catalog pages.
01Turning Inserts· 12 Series
Negative and positive rake inserts, from roughing through finishing
02Milling Inserts· 07 Series
Standard and side-and-face milling inserts for precision milling
03Grooving & Threading· 03 Series
Dedicated inserts for grooving, parting-off and threading
04Precision & Cermet· 10 Series
Cermet inserts and high-precision finishing inserts
05DTH & Deep-Hole Drilling· 02 Series
Down-the-hole and deep-hole drilling series for high-efficiency drilling
06Special-Purpose Inserts· 01 Series
Bar peeling, wheel hub and profile turning inserts
Tolerance ±0.05mm
Tighter than GB/T 2081
GB/T 2081 recommends ±0.08 mm for class M. Delong holds ±0.05 mm — and from powder blend to finish grinding and coating, every insert is traceable to its batch and process step.
Non-Standard Tooling
Custom Solutions
Custom tooling built around your workpiece material, machine parameters and production volume. Our technical engineers reply to selection enquiries within 48 hours.