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SUMITOMO Diamond Turning Insert: CNMA644 - Diamond Indexable Turning Inserts
SUMITOMODiamond Indexable Turning Inserts

SUMITOMO Diamond Turning Insert: CNMA644

The SUMITOMO Diamond Turning Insert, model CNMA644 (also referenced as CNMA190616, MPN CNMA644-AC420K), is a diamond indexable turning insert. It is available in the CNMA644 and CNMA190616 configurations.

SKU 3G-OTH-255965

Also listed as: CNMA644AC420K · CNMA644 AC420K

Brand
SUMITOMO
Item
Diamond Turning Insert: CNMA644
Category
Diamond Indexable Turning Inserts
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

SUMITOMO
Manufacturer Part Number
CNMA644-AC420K

Technical Documents

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SUMITOMO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SUMITOMO Diamond Turning Insert, model CNMA644 (also referenced as CNMA190616, MPN CNMA644-AC420K), is a diamond indexable turning insert. It is available in the CNMA644 and CNMA190616 configurations.

Frequently Asked Questions

What is the SUMITOMO Diamond Turning Insert CNMA644 used for?

The SUMITOMO Diamond Turning Insert CNMA644 is used for precision turning of non-ferrous materials such as aluminum alloys, copper, and plastics. Its diamond tip provides high wear resistance and a superior surface finish, making it ideal for automotive, aerospace, and general machining applications where tight tolerances are required.

What are the specifications of the SUMITOMO CNMA644-AC420K?

The SUMITOMO CNMA644-AC420K is a diamond indexable turning insert with model numbers CNMA644 and CNMA190616. It features a diamond cutting edge for hard, abrasive materials. The manufacturer part number is CNMA644-AC420K. This insert is designed for use in turning operations on non-ferrous workpieces.

Where to buy SUMITOMO Diamond Turning Inserts worldwide?

You can source SUMITOMO Diamond Turning Inserts, including the CNMA644-AC420K, through 3G Electric. As a global industrial equipment distributor, 3G Electric handles full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this and other SUMITOMO inserts.

How to select the correct SUMITOMO diamond turning insert?

To select the correct SUMITOMO diamond turning insert, match the insert geometry (e.g., CNMA644 or CNMA190616) to your tool holder and workpiece material. Diamond inserts are best for non-ferrous materials. Verify the manufacturer part number, such as CNMA644-AC420K, and ensure the insert size and shape fit your machining requirements.

Used in

Common applications for SUMITOMO
Automotive engine block machining — Sumitomo SNMG square turning inserts for facing and boring cast iron
Aerospace component turning — Sumitomo DNMG diamond inserts with UP chipbreaker for finishing titanium alloys
Oil and gas valve production — Sumitomo TPMR triangle inserts with T1500Z grade for threading stainless steel
General engineering shaft turning — Sumitomo CNMG diamond inserts with LU chipbreaker for medium interrupted cuts
Mold and die finishing — Sumitomo VNMG diamond inserts with UZ chipbreaker for hardened steel profiling
Heavy equipment repair — Sumitomo TCMT triangle inserts with AC810P grade for turning wear-resistant steels

SUMITOMO 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.

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