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WALTER Square (S) Indexable Turning Insert, SCMT432-RM4 / SCMT120408-RM4 - Square (S) Indexable Turning Inserts
WALTERSquare (S) Indexable Turning Inserts

WALTER Square (S) Indexable Turning Insert, SCMT432-RM4 / SCMT120408-RM4

The WALTER Square Turning Insert, model SCMT432-RM4 and SCMT120408-RM4 (MPN 6839128), is a square (S) indexable turning insert. It is available in two size variants: SCMT432-RM4 and SCMT120408-RM4.

SKU 3G-OTH-229504

Brand
WALTER
Item
Square
Part Number
6839128
Category
Square (S) Indexable Turning Inserts
Available to Order
Also known as:6839128WALTER
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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

WALTER
Manufacturer Part Number
6839128

Technical Documents

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

Product Description

The WALTER Square Turning Insert, model SCMT432-RM4 and SCMT120408-RM4 (MPN 6839128), is a square (S) indexable turning insert. It is available in two size variants: SCMT432-RM4 and SCMT120408-RM4.

Frequently Asked Questions

What is the WALTER SCMT432-RM4 turning insert used for?

The WALTER SCMT432-RM4 is a square indexable turning insert designed for general turning, facing, and profiling operations on metal workpieces. It suits medium machining in steel, stainless steel, and cast iron applications across automotive, aerospace, and general engineering industries.

What are the specifications of the WALTER SCMT120408-RM4 insert?

The WALTER SCMT120408-RM4 is a square indexable turning insert with an inscribed circle of 12.7 mm, thickness of 4.76 mm, and a 0.8 mm nose radius. It uses a chipbreaker geometry for moderate cutting depths and feeds, and is part of the SCMT family with MPN 6839128.

Where to buy WALTER turning inserts worldwide?

3G Electric supplies WALTER square turning inserts like the SCMT432-RM4 and SCMT120408-RM4 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility, ensuring you receive genuine WALTER tooling for your machining operations.

How to select between SCMT432-RM4 and SCMT120408-RM4 inserts?

Select SCMT432-RM4 for inch-based applications requiring a 1/2-inch inscribed circle and 3/16-inch thickness. Choose SCMT120408-RM4 for metric setups needing a 12.7 mm inscribed circle and 4.76 mm thickness. Both use the same chipbreaker geometry; match the insert size to your tool holder's pocket dimensions.

Used in

Common applications for WALTER
Automotive engine component machining — WALTER indexable face mills (e.g., F2010.B.250.Z12.13.R722M) for face milling cylinder heads and blocks.
Aerospace structural parts manufacturing — WALTER screw-machine length drill bits (e.g., A1148-4.5) for drilling holes in aluminum and titanium components.
General machining job shops — WALTER indexable face mills (e.g., F4042R.B16.040.Z05.10) for face milling steel and stainless steel workpieces.
Heavy equipment repair — WALTER indexable face mills (e.g., 127 mm diameter with 11 inserts) for resurfacing large cast iron and steel parts.
Energy sector valve and pump manufacturing — WALTER indexable face mills (e.g., 100 mm diameter with R720M geometry) for machining sealing surfaces.
CNC lathe operations — WALTER screw-machine length drill bits (e.g., A1148-4.5) for drilling in automated turning centers with bar feeders.
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WALTER Products

3G Electric supplies WALTER square (s) 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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