WALTER Triangle Turning Insert: TCMT3(2.5)1-MM4 WSM20S
The WALTER Triangle Turning Insert, type TCMT16T304-MM4 WSM20S (MPN 6836844), is a triangle (T) indexable turning insert. It is also referenced as TCMT3(2.5)1-MM4 WSM20S. 3G Electric interprets customer demand and…
SKU 3G-OTH-455171
Need installation or engineering help?
Ask a question
Product Description
The WALTER Triangle Turning Insert, type TCMT16T304-MM4 WSM20S (MPN 6836844), is a triangle (T) indexable turning insert. It is also referenced as TCMT3(2.5)1-MM4 WSM20S. 3G Electric interprets customer demand and delivers this genuine industrial insert across 14 departments — and far more — with specialist depth in machining as an authorised distributor.
Frequently Asked Questions
What is the WALTER Triangle Turning Insert TCMT16T304-MM4 WSM20S used for?
This WALTER triangle indexable turning insert is used for general turning, facing, and profiling operations on steel and cast iron workpieces. Its MM4 chipbreaker geometry provides effective chip control in medium machining applications, making it suitable for automotive, aerospace, and general engineering industries.
What are the specifications of the WALTER TCMT16T304-MM4 WSM20S insert?
The WALTER triangle turning insert has type TCMT16T304-MM4 WSM20S, also referenced as TCMT3(2.5)1-MM4 WSM20S. The manufacturer part number is 6836844. It features a WSM20S grade for steel and cast iron, with a triangle shape and MM4 chipbreaker for medium machining. 3G Electric supplies this genuine insert worldwide.
Where to buy WALTER turning inserts in worldwide?
3G Electric supplies WALTER triangle turning inserts, including TCMT16T304-MM4 WSM20S (MPN 6836844), to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. As a sourcing partner across 14 industrial departments, we interpret your demand and deliver the right insert for your application.
How to select the correct WALTER turning insert for steel machining?
Select the WALTER insert grade based on workpiece material and cutting conditions. For steel, the WSM20S grade offers good wear resistance and toughness. The MM4 chipbreaker suits medium depths of cut and feeds. Verify the insert shape (triangle T), size (TCMT16T304), and nose radius match your tool holder. 3G Electric can help confirm compatibility.
Used in
Common applications for WALTERWALTER Products
3G Electric supplies WALTER triangle (t) indexable turning inserts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









