SUMITOMO Diamond Turning Insert: CNMG643EME
The SUMITOMO Diamond Turning Insert, model CNMG643EME (also designated CNMG190612N-ME, MPN CNMG643EME-AC8025P), is a diamond indexable turning insert. It is available in two part number designations: CNMG643EME and…
SKU 3G-OTH-260570
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Product Description
The SUMITOMO Diamond Turning Insert, model CNMG643EME (also designated CNMG190612N-ME, MPN CNMG643EME-AC8025P), is a diamond indexable turning insert. It is available in two part number designations: CNMG643EME and CNMG190612N-ME.
Frequently Asked Questions
What is the SUMITOMO CNMG643EME diamond turning insert used for?
The SUMITOMO CNMG643EME (also CNMG190612N-ME) is a diamond indexable turning insert for precision machining of non-ferrous materials, composites, and abrasive alloys. It delivers high wear resistance and surface finish in turning, facing, and boring operations across automotive, aerospace, and general engineering industries.
What are the specifications of the SUMITOMO CNMG643EME-AC8025P insert?
The SUMITOMO CNMG643EME-AC8025P is a diamond indexable turning insert with part numbers CNMG643EME and CNMG190612N-ME. It features a CNMG geometry for 80° rhombic shape, designed for medium to finishing cuts. The AC8025P grade indicates a PVD-coated carbide substrate optimized for wear resistance and edge strength.
Where to buy SUMITOMO diamond turning inserts worldwide?
3G Electric supplies SUMITOMO diamond turning inserts like the CNMG643EME-AC8025P to customers worldwide. As a global industrial sourcing partner, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this insert.
How to select the correct SUMITOMO turning insert grade?
Selecting the correct SUMITOMO turning insert grade depends on workpiece material, cutting speed, and finish requirements. For non-ferrous and abrasive materials, the AC8025P grade on the CNMG643EME insert offers good wear resistance. Always match insert geometry (CNMG) to your tool holder and consult SUMITOMO's application guidelines for optimal parameters.
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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.















