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SUMITOMO Triangle Turning Insert: TNMA331 - Triangle (T) Indexable Turning Inserts
SUMITOMOTriangle (T) Indexable Turning Inserts

SUMITOMO Triangle Turning Insert: TNMA331

The SUMITOMO Triangle Turning Insert, model TNMA331 (also referenced as TNMA160404, MPN TNMA331-AC415K), is a triangle (T) indexable turning insert. It is available in two size designations: TNMA331 and TNMA160404.

SKU 3G-OTH-324246

Also listed as: TNMA331AC415K · TNMA331 AC415K

Brand
SUMITOMO
Item
Triangle Turning Insert: TNMA331
Category
Triangle (T) Indexable Turning Inserts
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Technical Specifications

SUMITOMO
Manufacturer Part Number
TNMA331-AC415K

Technical Documents

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

Product Description

The SUMITOMO Triangle Turning Insert, model TNMA331 (also referenced as TNMA160404, MPN TNMA331-AC415K), is a triangle (T) indexable turning insert. It is available in two size designations: TNMA331 and TNMA160404.

Frequently Asked Questions

What is the SUMITOMO TNMA331 triangle turning insert used for?

The SUMITOMO TNMA331 (TNMA160404) triangle turning insert is used for general turning, facing, and profiling operations on metal workpieces. Its 60-degree triangular shape provides three cutting edges, making it suitable for roughing and finishing in automotive, aerospace, and general machining applications.

What are the specifications of the SUMITOMO TNMA331-AC415K insert?

The SUMITOMO TNMA331-AC415K is a triangle (T) indexable turning insert with size designations TNMA331 and TNMA160404. The manufacturer part number is TNMA331-AC415K. It is designed for use in turning holders that accept TNMA-style inserts, offering reliable cutting performance in various materials.

Where to buy SUMITOMO TNMA331 turning inserts worldwide?

3G Electric supplies SUMITOMO TNMA331 (TNMA160404) triangle turning inserts worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this insert.

How to select the correct SUMITOMO TNMA331 insert for my lathe?

To select the correct SUMITOMO TNMA331 insert, match the insert size (TNMA331 or TNMA160404) to your tool holder's pocket. Ensure the insert's triangle shape and clearance angle are compatible with your holder. Consult your lathe's tooling manual or contact 3G Electric for application 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 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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Cross-referenced by specification & description
SUMITOMO Triangle Turning Insert: TNMA331, TNMA160404 (MPN TNMA331-AC420K)
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