SUMITOMO Diamond Turning Insert: CNMG866EEM
The SUMITOMO Diamond Turning Insert, model CNMG866EEM (MPN CNMG866EEM-AC5015S) and CNMG250924N-EM, is a diamond indexable turning insert. It is available in two part numbers: CNMG866EEM and CNMG250924N-EM.
SKU 3G-OTH-259592
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Product Description
The SUMITOMO Diamond Turning Insert, model CNMG866EEM (MPN CNMG866EEM-AC5015S) and CNMG250924N-EM, is a diamond indexable turning insert. It is available in two part numbers: CNMG866EEM and CNMG250924N-EM.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the SUMITOMO CNMG866EEM diamond turning insert used for?
The SUMITOMO CNMG866EEM diamond turning insert is used for precision machining of non-ferrous materials, composites, and abrasive alloys. It delivers high wear resistance and surface finish in turning, boring, and facing operations across automotive, aerospace, and general engineering industries.
What are the specifications of the SUMITOMO CNMG866EEM insert?
The SUMITOMO CNMG866EEM insert is a diamond indexable turning insert with manufacturer part number CNMG866EEM-AC5015S. It is also available as CNMG250924N-EM. Both part numbers refer to the same geometry and grade, designed for consistent cutting performance.
Where to buy SUMITOMO diamond turning inserts worldwide?
3G Electric supplies SUMITOMO diamond turning inserts worldwide. We handle full logistics, customs clearance, and delivery to your facility. As a global industrial sourcing partner, we provide genuine SUMITOMO inserts like CNMG866EEM-AC5015S with reliable lead times and technical support.
How to select the correct SUMITOMO diamond turning insert?
Select the SUMITOMO diamond turning insert by matching the insert geometry (CNMG866EEM or CNMG250924N-EM) to your tool holder pocket and workpiece material. For non-ferrous and abrasive materials, diamond grade AC5015S offers superior edge life. Consult your machine parameters for speed and feed recommendations.
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Common applications for SUMITOMOSUMITOMO Products
3G Electric supplies SUMITOMO diamond indexable turning inserts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.








