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WALTER Triangle Turning Insert: TNMA331-RK5 WKK20S - Triangle (T) Indexable Turning Inserts
WALTERTriangle (T) Indexable Turning Inserts

WALTER Triangle Turning Insert: TNMA331-RK5 WKK20S

The WALTER Triangle Turning Insert, model TNMA331-RK5 WKK20S and TNMA160404-RK5 WKK20S (MPN 6391851), is a triangle (T) indexable turning insert. It is available in two variants: TNMA331-RK5 WKK20S and TNMA160404-RK5…

SKU 3G-OTH-324327

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WALTER
Item
Triangle Turning Insert: TNMA331-RK5 WKK20S
Category
Triangle (T) Indexable Turning Inserts
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Technical Specifications

WALTER
Manufacturer Part Number
6391851
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WALTER Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WALTER Triangle Turning Insert, model TNMA331-RK5 WKK20S and TNMA160404-RK5 WKK20S (MPN 6391851), is a triangle (T) indexable turning insert. It is available in two variants: TNMA331-RK5 WKK20S and TNMA160404-RK5 WKK20S.

Frequently Asked Questions

What is the WALTER TNMA331-RK5 WKK20S turning insert used for?

The WALTER TNMA331-RK5 WKK20S is a triangle (T) indexable turning insert designed for general turning operations on metal workpieces. It is commonly used in machining applications across industries such as automotive, aerospace, and general engineering where reliable cutting performance is required.

What are the specifications of the WALTER TNMA160404-RK5 WKK20S insert?

The WALTER TNMA160404-RK5 WKK20S is a triangle indexable turning insert with the manufacturer part number 6391851. It is the metric equivalent of the TNMA331-RK5 WKK20S variant. Both inserts share the same WKK20S grade and RK5 geometry for consistent cutting performance.

Where to buy WALTER turning inserts worldwide?

3G Electric supplies WALTER triangle turning inserts, including the TNMA331-RK5 WKK20S and TNMA160404-RK5 WKK20S, to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on your required quantity.

How to select the correct WALTER TNMA insert for my lathe?

To select the correct WALTER TNMA insert, match the insert size (TNMA331 or TNMA160404) to your tool holder's pocket dimensions and your workpiece material. The WKK20S grade is suitable for steel and cast iron. Always verify the insert's inscribed circle (IC) and thickness against your holder's specifications.

Used in

Common applications for WALTER
Automotive engine block machining — WALTER WNMG542-MM5 WSM20S turning inserts for cylinder bore finishing
Aerospace aluminum component turning — WALTER CCMT060208-FK6 WKK10S diamond inserts for high-speed finishing
General engineering cutoff operations — WALTER GX24-3E400N04-UA4 WKP33S parting inserts for steel bars
Mold and die steel grooving — WALTER GX16-2E300R6-CF5 WSM33S inserts for deep groove roughing
CNC lathe shallow hole drilling — WALTER A1148-1/16IN cobalt screw-machine drill bits for oil-hole drilling
Heavy equipment shaft turning — WALTER SCMT120408-RM4 square inserts for roughing of alloy steels

WALTER 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.

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