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

SUMITOMO Triangle Turning Insert: TCMA21.51 - Triangle (T) Indexable Turning Inserts
SUMITOMOTriangle (T) Indexable Turning Inserts

SUMITOMO Triangle Turning Insert: TCMA21.51

The SUMITOMO Triangle Turning Insert, model TCMA21.51 (MPN TCMA21.51-AC420K) and TCMW110204, is a Triangle (T) indexable turning insert. It is designed for metal-cutting applications and is available in two specific…

SKU 3G-OTH-324481

Also listed as: TCMA2151AC420K · TCMA21 51 AC420K · TCMA21-51-AC420K

Brand
SUMITOMO
Item
Triangle Turning Insert: TCMA21.51
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

SUMITOMO
Manufacturer Part Number
TCMA21.51-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 TCMA21.51 (MPN TCMA21.51-AC420K) and TCMW110204, is a Triangle (T) indexable turning insert. It is designed for metal-cutting applications and is available in two specific geometries: TCMA21.51 and TCMW110204.

Frequently Asked Questions

What is the SUMITOMO Triangle Turning Insert used for?

The SUMITOMO Triangle Turning Insert is used for metal-cutting applications such as turning, facing, and profiling on lathes. Its triangular shape provides multiple cutting edges for efficient material removal in industrial machining operations.

What are the specifications of the SUMITOMO TCMA21.51 insert?

The SUMITOMO TCMA21.51 insert has the manufacturer part number TCMA21.51-AC420K and is also known as TCMW110204. It is a Triangle (T) indexable turning insert designed for metal cutting, with geometry options TCMA21.51 and TCMW110204.

Where to buy SUMITOMO Triangle Turning Inserts worldwide?

You can source SUMITOMO Triangle Turning Inserts worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location, ensuring a smooth procurement process for these inserts.

How to select the right SUMITOMO Triangle Turning Insert?

To select the right SUMITOMO Triangle Turning Insert, match the insert geometry (TCMA21.51 or TCMW110204) to your machining operation and workpiece material. Consult the SUMITOMO catalog for recommended cutting parameters and ensure compatibility with your tool holder.

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: TCMA21.51, TCMW110204 (MPN TCMA21.51-AC415K)
SUMITOMO
SUMITOMO Triangle Turning Insert: TCMA21.51, TCMW110204 (MPN TCMA21.51-AC415K)
SUMITOMO Triangle Turning Insert: TCMA21.52, TCMW110208 (MPN TCMA21.52-AC405K)
SUMITOMO
SUMITOMO Triangle Turning Insert: TCMA21.52, TCMW110208 (MPN TCMA21.52-AC405K)
SUMITOMO Triangle Turning Insert: TCMA21.52, TCMW110208 (MPN TCMA21.52-AC420K)
SUMITOMO
SUMITOMO Triangle Turning Insert: TCMA21.52, TCMW110208 (MPN TCMA21.52-AC420K)
SUMITOMO Triangle Turning Insert: TCMT21.51EFB, TCMT110204N-FB (MPN TCMT21.51EFB-T1500A)
SUMITOMO
SUMITOMO Triangle Turning Insert: TCMT21.51EFB, TCMT110204N-FB (MPN TCMT21.51EFB-T1500A)
SUMITOMO Triangle Turning Insert: TCMT21.51ENK, TCMT110204N-SK (MPN TCMT21.51ENK-AC8025P)
SUMITOMO
SUMITOMO Triangle Turning Insert: TCMT21.51ENK, TCMT110204N-SK (MPN TCMT21.51ENK-AC8025P)
SUMITOMO Triangle Turning Insert: TCMA32.52, TCMW16T308 (MPN TCMA32.52-AC420K)
SUMITOMO
SUMITOMO Triangle Turning Insert: TCMA32.52, TCMW16T308 (MPN TCMA32.52-AC420K)

More from SUMITOMO

View all SUMITOMO parts
SUMITOMO Triangle Turning Insert: 3NU-TNGA331HS, 3NU-TNGA160404HS (MPN 3NUTNGA331HS-BN2000)
SUMITOMO
SUMITOMO Triangle Turning Insert: 3NU-TNGA331HS, 3NU-TNGA160404HS (MPN 3NUTNGA331HS-BN2000)
SUMITOMO Triangle Turning Insert: TNMA332, TNMA160408 (MPN TNMA332-AC415K)
SUMITOMO
SUMITOMO Triangle Turning Insert: TNMA332, TNMA160408 (MPN TNMA332-AC415K)
SUMITOMO Triangle Turning Insert: TNPL432M, TNGG220408L-UM (MPN TNPL432M-T1500A)
SUMITOMO
SUMITOMO Triangle Turning Insert: TNPL432M, TNGG220408L-UM (MPN TNPL432M-T1500A)
SUMITOMO Triangle Turning Insert: TNMG332EGU, TNMG160408N-GU (MPN TNMG332EGU-AC5015S)
SUMITOMO
SUMITOMO Triangle Turning Insert: TNMG332EGU, TNMG160408N-GU (MPN TNMG332EGU-AC5015S)
SUMITOMO Triangle Turning Insert: TBGT520.5LFX, TBGT060102L-FX (MPN TBGT520.5LFX-AC8025P)
SUMITOMO
SUMITOMO Triangle Turning Insert: TBGT520.5LFX, TBGT060102L-FX (MPN TBGT520.5LFX-AC8025P)
SUMITOMO Triangle Turning Insert: TCGT21.50.5MEFM, TCGT110202MN-SC (MPN TCGT21.50.5MEFM-T1500A)
SUMITOMO
SUMITOMO Triangle Turning Insert: TCGT21.50.5MEFM, TCGT110202MN-SC (MPN TCGT21.50.5MEFM-T1500A)
SUMITOMO Triangle Turning Insert: TNMG432EUP, TNMG220408N-UP (MPN TNMG432EUP-AC830P)
SUMITOMO
SUMITOMO Triangle Turning Insert: TNMG432EUP, TNMG220408N-UP (MPN TNMG432EUP-AC830P)
SUMITOMO Triangle Turning Insert: NC-TCGA21.52, NC-TCGW110208 (MPN NCTCGA21.52-BNC200)
SUMITOMO
SUMITOMO Triangle Turning Insert: NC-TCGA21.52, NC-TCGW110208 (MPN NCTCGA21.52-BNC200)