We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

SUMITOMO Triangle Turning Insert: TPMN321 - Triangle (T) Indexable Turning Inserts
SUMITOMOTriangle (T) Indexable Turning Inserts

SUMITOMO Triangle Turning Insert: TPMN321

The SUMITOMO Triangle Turning Insert, model TPMN321 (also designated TPMN160304, MPN TPMN321-AC420K), is a triangle (T) indexable turning insert. It is designed for turning operations and is available in the…

SKU 3G-OTH-322901

Also listed as: TPMN321AC420K · TPMN321 AC420K

Brand
SUMITOMO
Item
Triangle Turning Insert: TPMN321
Category
Triangle (T) Indexable Turning Inserts
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

SUMITOMO
Manufacturer Part Number
TPMN321-AC420K

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The SUMITOMO Triangle Turning Insert, model TPMN321 (also designated TPMN160304, MPN TPMN321-AC420K), is a triangle (T) indexable turning insert. It is designed for turning operations and is available in the specified geometry.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the SUMITOMO TPMN321 turning insert used for?

The SUMITOMO TPMN321 (TPMN160304) triangle indexable turning insert is used for general turning operations on metal workpieces. Its triangular geometry provides three cutting edges for cost-effective machining. It is suitable for a range of materials and applications in industrial manufacturing.

What are the specifications of the SUMITOMO TPMN321 insert?

The SUMITOMO TPMN321 insert has the designation TPMN321 (also TPMN160304) and the manufacturer part number TPMN321-AC420K. It is a triangle (T) indexable turning insert designed for turning operations. The AC420K grade indicates a coated carbide substrate for wear resistance.

Where to buy SUMITOMO TPMN321 inserts worldwide?

3G Electric supplies SUMITOMO TPMN321 turning inserts to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. As a global industrial solutions provider, we source and deliver genuine SUMITOMO inserts for your machining needs.

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

To select the correct SUMITOMO turning insert, match the insert shape (triangle T), size (TPMN321 or TPMN160304), and grade (AC420K) to your tool holder and workpiece material. Consult your lathe manual or tooling engineer for proper clearance angles and feed rates. 3G Electric can help confirm compatibility.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
SUMITOMO Triangle Turning Insert: TPMN321, TPMN160304 (MPN TPMN321-AC8025P)
SUMITOMO
SUMITOMO Triangle Turning Insert: TPMN321, TPMN160304 (MPN TPMN321-AC8025P)
SUMITOMO Triangle Turning Insert: TPMN323, TPMN160308 (MPN TPMN323-AC420K)
SUMITOMO
SUMITOMO Triangle Turning Insert: TPMN323, TPMN160308 (MPN TPMN323-AC420K)
SUMITOMO Triangle Turning Insert: TPMN322, TPMN160308 (MPN TPMN322-AC420K)
SUMITOMO
SUMITOMO Triangle Turning Insert: TPMN322, TPMN160308 (MPN TPMN322-AC420K)
SUMITOMO Triangle Turning Insert: TPMR321ENF, TPMR160304N-SF (MPN TPMR321ENF-AC8025P)
SUMITOMO
SUMITOMO Triangle Turning Insert: TPMR321ENF, TPMR160304N-SF (MPN TPMR321ENF-AC8025P)
SUMITOMO Triangle Turning Insert: TPMN322, TPMN160308 (MPN TPMN322-AC8025P)
SUMITOMO
SUMITOMO Triangle Turning Insert: TPMN322, TPMN160308 (MPN TPMN322-AC8025P)
SUMITOMO Triangle Turning Insert: TPMN322, TPMN160308 (MPN TPMN322-ACP200)
SUMITOMO
SUMITOMO Triangle Turning Insert: TPMN322, TPMN160308 (MPN TPMN322-ACP200)

More from SUMITOMO

View all SUMITOMO parts
SUMITOMO Triangle Turning Insert: TPGT220LFY, TPGT110301L-FY (MPN TPGT220LFY-AC5015S)
SUMITOMO
SUMITOMO Triangle Turning Insert: TPGT220LFY, TPGT110301L-FY (MPN TPGT220LFY-AC5015S)
SUMITOMO Triangle Turning Insert: NF-TBGD521, NF-TBGW060104 (MPN NFTBGD521-DA1000)
SUMITOMO
SUMITOMO Triangle Turning Insert: NF-TBGD521, NF-TBGW060104 (MPN NFTBGD521-DA1000)
SUMITOMO Triangle Turning Insert: TNMG434EMU, TNMG220416NMU (MPN TNMG434EMU-AC700G)
SUMITOMO
SUMITOMO Triangle Turning Insert: TNMG434EMU, TNMG220416NMU (MPN TNMG434EMU-AC700G)
SUMITOMO Triangle Turning Insert: TPG431, TPGN220404 (MPN TPG431-AC8025P)
SUMITOMO
SUMITOMO Triangle Turning Insert: TPG431, TPGN220404 (MPN TPG431-AC8025P)
SUMITOMO Triangle Turning Insert: TNMG331EGZ, TNMG160404N-GZ (MPN TNMG331EGZ-AC405K)
SUMITOMO
SUMITOMO Triangle Turning Insert: TNMG331EGZ, TNMG160404N-GZ (MPN TNMG331EGZ-AC405K)
SUMITOMO Triangle Turning Insert: 3NU-TNGA332, 3NU-TNGA160408 (MPN 3NUTNGA332-BN7500)
SUMITOMO
SUMITOMO Triangle Turning Insert: 3NU-TNGA332, 3NU-TNGA160408 (MPN 3NUTNGA332-BN7500)
SUMITOMO Triangle Turning Insert: TNMG332ESX, TNMG160408N-SX (MPN TNMG332ESX-AC830P)
SUMITOMO
SUMITOMO Triangle Turning Insert: TNMG332ESX, TNMG160408N-SX (MPN TNMG332ESX-AC830P)
SUMITOMO Triangle Turning Insert: NU-TPGA221LT, NU-TPGW110304LT (MPN NUTPGA221LT-BN2000)
SUMITOMO
SUMITOMO Triangle Turning Insert: NU-TPGA221LT, NU-TPGW110304LT (MPN NUTPGA221LT-BN2000)