We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

SUMITOMO Diamond Turning Insert: CNMA643 - Diamond Indexable Turning Inserts
SUMITOMODiamond Indexable Turning Inserts

SUMITOMO Diamond Turning Insert: CNMA643

The SUMITOMO Diamond Turning Insert, model CNMA643 (also known as CNMA190612, MPN CNMA643-AC420K), is a diamond indexable turning insert designed for precision machining. This product is identified by specifications…

SKU 3G-OTH-256449

Also listed as: CNMA643AC420K · CNMA643 AC420K

Brand
SUMITOMO
Item
Diamond Turning Insert: CNMA643
Category
Diamond Indexable Turning Inserts
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

SUMITOMO
Manufacturer Part Number
CNMA643-AC420K

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The SUMITOMO Diamond Turning Insert, model CNMA643 (also known as CNMA190612, MPN CNMA643-AC420K), is a diamond indexable turning insert designed for precision machining. This product is identified by specifications CNMA643 and CNMA190612.

Frequently Asked Questions

What is the SUMITOMO Diamond Turning Insert CNMA643 used for?

The SUMITOMO Diamond Turning Insert CNMA643 is used for precision machining of non-ferrous materials, such as aluminum alloys and copper. Its diamond composition provides high wear resistance and a superior surface finish, making it ideal for automotive, aerospace, and general manufacturing applications where tight tolerances are required.

What are the specifications of the SUMITOMO CNMA643 insert?

The SUMITOMO CNMA643 insert is also designated as CNMA190612, with manufacturer part number CNMA643-AC420K. It is a diamond indexable turning insert. Key specifications include the CNMA643 and CNMA190612 geometries, designed for precision turning operations. The insert is engineered for high-speed machining of non-ferrous materials.

Where to buy SUMITOMO Diamond Turning Inserts worldwide?

You can source SUMITOMO Diamond Turning Inserts, including the CNMA643 model, through 3G Electric. As a global industrial equipment distributor, 3G Electric handles full logistics, customs clearance, and delivery to worldwide destinations. Contact 3G Electric for pricing and lead time on this precision machining insert.

How to select the correct SUMITOMO diamond turning insert for my application?

To select the correct SUMITOMO diamond turning insert, match the insert geometry (e.g., CNMA643) to your workpiece material and operation. Diamond inserts are best for non-ferrous materials like aluminum. Consider the insert's nose radius and chipbreaker design for finish or roughing. Consult the SUMITOMO catalog or a 3G Electric specialist for application-specific guidance.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
SUMITOMO Diamond Turning Insert: CNMA643, CNMA190612 (MPN CNMA643-AC415K)
SUMITOMO
SUMITOMO Diamond Turning Insert: CNMA643, CNMA190612 (MPN CNMA643-AC415K)
SUMITOMO Diamond Turning Insert: CNMA643, CNMA190612 (MPN CNMA643-AC405K)
SUMITOMO
SUMITOMO Diamond Turning Insert: CNMA643, CNMA190612 (MPN CNMA643-AC405K)
SUMITOMO Diamond Turning Insert: CNMA644, CNMA190616 (MPN CNMA644-AC420K)
SUMITOMO
SUMITOMO Diamond Turning Insert: CNMA644, CNMA190616 (MPN CNMA644-AC420K)
SUMITOMO Diamond Turning Insert: CNMA644, CNMA190616 (MPN CNMA644-AC415K)
SUMITOMO
SUMITOMO Diamond Turning Insert: CNMA644, CNMA190616 (MPN CNMA644-AC415K)
SUMITOMO Diamond Turning Insert: CNMA644, CNMA190616 (MPN CNMA644-AC405K)
SUMITOMO
SUMITOMO Diamond Turning Insert: CNMA644, CNMA190616 (MPN CNMA644-AC405K)
SUMITOMO Diamond Turning Insert: CNMA434, CNMA120416 (MPN CNMA434-AC415K)
SUMITOMO
SUMITOMO Diamond Turning Insert: CNMA434, CNMA120416 (MPN CNMA434-AC415K)

More from SUMITOMO

View all SUMITOMO parts
SUMITOMO Diamond Turning Insert: DCGT32.50RFY, DCGT11T301R-FY (MPN DCGT32.50RFY-AC5025S)
SUMITOMO
SUMITOMO Diamond Turning Insert: DCGT32.50RFY, DCGT11T301R-FY (MPN DCGT32.50RFY-AC5025S)
SUMITOMO Diamond Turning Insert: VNGG331ESU, VNGG160404N-SU (MPN VNGG331ESU-T1500A)
SUMITOMO
SUMITOMO Diamond Turning Insert: VNGG331ESU, VNGG160404N-SU (MPN VNGG331ESU-T1500A)
SUMITOMO Diamond Turning Insert: NU-DNMA433, NU-DNMA150412 (MPN NUDNMA433-BN2000)
SUMITOMO
SUMITOMO Diamond Turning Insert: NU-DNMA433, NU-DNMA150412 (MPN NUDNMA433-BN2000)
SUMITOMO Diamond Turning Insert: CCGT32.51MESI, CCGT09T304MN-SI (MPN CCGT32.51MESI-T1500A)
SUMITOMO
SUMITOMO Diamond Turning Insert: CCGT32.51MESI, CCGT09T304MN-SI (MPN CCGT32.51MESI-T1500A)
SUMITOMO Diamond Turning Insert: CNMG544EEM, CNMG160616N-EM (MPN CNMG544EEM-AC6030M)
SUMITOMO
SUMITOMO Diamond Turning Insert: CNMG544EEM, CNMG160616N-EM (MPN CNMG544EEM-AC6030M)
SUMITOMO Diamond Turning Insert: CNMG433EUP, CNMG120412NUP (MPN CNMG433EUP-AC830P)
SUMITOMO
SUMITOMO Diamond Turning Insert: CNMG433EUP, CNMG120412NUP (MPN CNMG433EUP-AC830P)
SUMITOMO Diamond Turning Insert: CNMG433EEG, CNMG120412N-EG (MPN CNMG433EEG-AC8025P)
SUMITOMO
SUMITOMO Diamond Turning Insert: CNMG433EEG, CNMG120412N-EG (MPN CNMG433EEG-AC8025P)
SUMITOMO Diamond Turning Insert: CCMT32.51ELUW, CCMT09T304N-LUW (MPN CCMT32.51ELUW-AC415K)
SUMITOMO
SUMITOMO Diamond Turning Insert: CCMT32.51ELUW, CCMT09T304N-LUW (MPN CCMT32.51ELUW-AC415K)