We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

WIDIA Triangle Turning Insert: TPU321 - Triangle (T) Indexable Turning Inserts
WIDIATriangle (T) Indexable Turning Inserts

WIDIA Triangle Turning Insert: TPU321

The WIDIA Triangle Turning Insert, model TPU321/TPUN160304 (MPN 2028821), is a triangle (T) indexable turning insert. It is available in two designations: TPU321 and TPUN160304.

SKU 3G-OTH-323008

Brand
WIDIA
Item
Triangle Turning Insert: TPU321
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

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

WIDIA
Manufacturer Part Number
2028821

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

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

Product Description

The WIDIA Triangle Turning Insert, model TPU321/TPUN160304 (MPN 2028821), is a triangle (T) indexable turning insert. It is available in two designations: TPU321 and TPUN160304.

Frequently Asked Questions

What is the WIDIA Triangle Turning Insert TPU321 used for?

The WIDIA Triangle Turning Insert TPU321 is used for turning, facing, and profiling operations on metal workpieces. Its triangular shape provides three cutting edges for cost-effective machining. It is suitable for general-purpose machining of steels, stainless steels, and cast irons in industrial manufacturing environments.

What are the specifications of the WIDIA TPUN160304 insert?

The WIDIA TPUN160304 insert has the designation TPUN160304, which corresponds to the TPU321 geometry. It is a triangle (T) indexable turning insert with a manufacturer part number of 2028821. The insert is designed for use in appropriate tool holders and is available from 3G Electric.

Where to buy WIDIA turning inserts in worldwide?

You can source WIDIA turning inserts worldwide through 3G Electric. As a global industrial equipment distributor since 1990, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the WIDIA TPU321/TPUN160304 insert.

How to select the correct WIDIA triangle insert for my lathe?

To select the correct WIDIA triangle insert, match the insert designation (TPU321 or TPUN160304) to your tool holder's pocket size and clamping system. Ensure the insert geometry suits your workpiece material and operation. Consult your tool holder manufacturer's compatibility chart. 3G Electric can assist with sourcing the correct WIDIA insert.

Used in

Common applications for WIDIA
General turning of steel components — WIDIA DCMT diamond turning inserts (e.g., DCMT3251MP)
Grooving and parting in automotive parts manufacturing — WIDIA WMTCL indexable grooving toolholders
Finishing operations on aluminum alloys — WIDIA VNMG diamond turning inserts (e.g., VNMG331ML)
Heavy-duty turning of stainless steel — WIDIA DNMG carbide inserts with MS chipbreaker (e.g., DNMG433MS)
Threading and contouring in mold making — WIDIA TCMT triangle turning inserts (e.g., TCMT3252MP)
Parting-off operations in high-volume production — WIDIA WGMEL grooving and parting toolholders

WIDIA Products

3G Electric supplies WIDIA 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
WIDIA Triangle Turning Insert: TPU322, TPUN160308 (MPN 2028830)
WIDIA
WIDIA Triangle Turning Insert: TPU322, TPUN160308 (MPN 2028830)
WIDIA Triangle Turning Insert: TPU323, TPUN160312 (MPN 2028833)
WIDIA
WIDIA Triangle Turning Insert: TPU323, TPUN160312 (MPN 2028833)
WIDIA Triangle Turning Insert: TPU322, TPUN160308 (MPN 2028832)
WIDIA
WIDIA Triangle Turning Insert: TPU322, TPUN160308 (MPN 2028832)
WIDIA Triangle Turning Insert: TPU321, TPUN160304 (MPN 4170958)
WIDIA
WIDIA Triangle Turning Insert: TPU321, TPUN160304 (MPN 4170958)
WIDIA Triangle Turning Insert: TPU321, TPUN160304 (MPN 4170866)
WIDIA
WIDIA Triangle Turning Insert: TPU321, TPUN160304 (MPN 4170866)
WIDIA Triangle Turning Insert: TPU321, TPUN160304 (MPN 4170645)
WIDIA
WIDIA Triangle Turning Insert: TPU321, TPUN160304 (MPN 4170645)

More from WIDIA

View all WIDIA parts
WIDIA Triangle Turning Insert: TNGP331, TNGP160404 (MPN TNGP331 TN10U)
WIDIA
WIDIA Triangle Turning Insert: TNGP331, TNGP160404 (MPN TNGP331 TN10U)
WIDIA Triangle Turning Insert: TNMG3314P, TNMG1604044P (MPN 4165874)
WIDIA
WIDIA Triangle Turning Insert: TNMG3314P, TNMG1604044P (MPN 4165874)
WIDIA Triangle Turning Inserts: TCMT3252MU, TCMT16T308MU (MPN 6869671)
WIDIA
WIDIA Triangle Turning Inserts: TCMT3252MU, TCMT16T308MU (MPN 6869671)
WIDIA Triangle Turning Insert: TNMG433MR, TNMG220412MR (MPN 4171155)
WIDIA
WIDIA Triangle Turning Insert: TNMG433MR, TNMG220412MR (MPN 4171155)
WIDIA Triangle Turning Insert: TPHB21505M, TPHB110202M (MPN 2823949)
WIDIA
WIDIA Triangle Turning Insert: TPHB21505M, TPHB110202M (MPN 2823949)
WIDIA Triangle Turning Insert: TPHB21505, TPHB110202 (MPN 2824195)
WIDIA
WIDIA Triangle Turning Insert: TPHB21505, TPHB110202 (MPN 2824195)
WIDIA Triangle Turning Insert: TPG322T0420, TPGN160308T01020 (MPN 2952712)
WIDIA
WIDIA Triangle Turning Insert: TPG322T0420, TPGN160308T01020 (MPN 2952712)
WIDIA Triangle Turning Insert: TPG321T0220, TPGN160304T00520 (MPN 2952709)
WIDIA
WIDIA Triangle Turning Insert: TPG321T0220, TPGN160304T00520 (MPN 2952709)