WALTER Diamond Turning Insert: DNMA432-RK5 WKK20S
The WALTER Diamond Turning Insert, model DNMA432-RK5 WKK20S / DNMA150408-RK5 WKK20S (MPN 6390129), is a diamond indexable turning insert. It is available in two designations: DNMA432-RK5 WKK20S and DNMA150408-RK5 WKK20S.
SKU 3G-OTH-259092
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Product Description
The WALTER Diamond Turning Insert, model DNMA432-RK5 WKK20S / DNMA150408-RK5 WKK20S (MPN 6390129), is a diamond indexable turning insert. It is available in two designations: DNMA432-RK5 WKK20S and DNMA150408-RK5 WKK20S.
Frequently Asked Questions
What is the WALTER Diamond Turning Insert DNMA432-RK5 WKK20S used for?
The WALTER Diamond Turning Insert DNMA432-RK5 WKK20S is used for precision turning of non-ferrous materials, composites, and abrasive workpieces. Its diamond grade provides high wear resistance and long tool life in finishing and semi-finishing operations across automotive, aerospace, and general machining industries.
What are the specifications of the WALTER Diamond Turning Insert MPN 6390129?
The WALTER Diamond Turning Insert MPN 6390129 is available in two designations: DNMA432-RK5 WKK20S and DNMA150408-RK5 WKK20S. Both are diamond indexable turning inserts designed for high-performance machining. The DNMA432 designation corresponds to the ISO metric size DNMA150408.
Where to buy WALTER Diamond Turning Inserts worldwide?
You can source WALTER Diamond Turning Inserts worldwide through 3G Electric, a global industrial equipment distributor established in 1990. We handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead times for the DNMA432-RK5 WKK20S or DNMA150408-RK5 WKK20S.
How to select the correct WALTER Diamond Turning Insert for your application?
To select the correct WALTER Diamond Turning Insert, match the insert geometry (DNMA432 or DNMA150408) to your tool holder and workpiece material. The RK5 chipbreaker and WKK20S diamond grade suit non-ferrous and abrasive materials. Consult WALTER's technical documentation for feed, speed, and depth-of-cut recommendations.
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3G Electric supplies WALTER diamond indexable turning inserts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















