Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

WIDIA Turning Insert: RNMA120400 (MPN 4171639). Key specifications — attr257836: RNMA120400. - Round (R) Indexable Turning Inserts
WIDIARound (R) Indexable Turning Inserts

WIDIA Turning Insert: RNMA120400 (MPN 4171639). Key specifications — attr257836: RNMA120400.

SKU 3G-OTH-301548

Brand
WIDIA
Item
Turning Insert: RNMA120400
Category
Round (R) Indexable Turning Inserts
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
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

Technical Specifications

WIDIA
Manufacturer Part Number
4171639
View Full Spec Sheet

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

Frequently Asked Questions

What is the WIDIA RNMA120400 turning insert used for?

The WIDIA RNMA120400 is a round indexable turning insert designed for roughing and finishing operations on steel, stainless steel, and cast iron. It is commonly used in general machining, automotive, and heavy equipment manufacturing where high material removal rates and surface finish are required.

What are the specifications of the WIDIA RNMA120400 insert?

The WIDIA RNMA120400 turning insert has the part number 4171639 and the ISO designation RNMA120400. It is a round (R) indexable insert with a 12 mm diameter and 4 mm thickness, suitable for medium to heavy cutting applications. Always verify dimensions with your toolholder.

Where to buy WIDIA RNMA120400 inserts worldwide?

3G Electric supplies the WIDIA RNMA120400 (MPN 4171639) to customers 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 round indexable turning insert.

How to select the correct WIDIA turning insert for your application?

Select the WIDIA RNMA120400 for round insert applications requiring high edge strength and chip control. Match the insert geometry to your workpiece material (steel, stainless, cast iron) and operation (roughing or finishing). Consult your toolholder manufacturer for compatibility with the RNMA120400 ISO designation.

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 round (r) 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

Similar products

Matched by specification & description
WIDIA Turning Insert: RNMA120400 (MPN 4171881). Key specifications — attr257836: RNMA120400.
WIDIA
WIDIA Turning Insert: RNMA120400 (MPN 4171881). Key specifications — attr257836: RNMA120400.
WIDIA Turning Insert: RNMG120400RH (MPN 4171713). Key specifications — attr257836: RNMG120400RH.
WIDIA
WIDIA Turning Insert: RNMG120400RH (MPN 4171713). Key specifications — attr257836: RNMG120400RH.
WIDIA Turning Insert: RNMG120400RH (MPN 4171531). Key specifications — attr257836: RNMG120400RH.
WIDIA
WIDIA Turning Insert: RNMG120400RH (MPN 4171531). Key specifications — attr257836: RNMG120400RH.
WIDIA Turning Insert: RNMG120400RH (MPN 4170996). Key specifications — attr257836: RNMG120400RH.
WIDIA
WIDIA Turning Insert: RNMG120400RH (MPN 4170996). Key specifications — attr257836: RNMG120400RH.
WIDIA Turning Insert: RNMG12047N (MPN 4166495). Key specifications — attr257836: RNMG12047N.
WIDIA
WIDIA Turning Insert: RNMG12047N (MPN 4166495). Key specifications — attr257836: RNMG12047N.
WIDIA Turning Insert: RNMG190600RH (MPN 4171714). Key specifications — attr257836: RNMG190600RH.
WIDIA
WIDIA Turning Insert: RNMG190600RH (MPN 4171714). Key specifications — attr257836: RNMG190600RH.

More from WIDIA

View all WIDIA parts
WIDIA Turning Insert: RCGX120700T02020 (MPN 2952697). Key specifications — attr257836: RCGX120700T02020.
WIDIA
WIDIA Turning Insert: RCGX120700T02020 (MPN 2952697). Key specifications — attr257836: RCGX120700T02020.
WIDIA Turning Insert: RCMT10T3M0 (MPN 4169977). Key specifications — attr257836: RCMT10T3M0.
WIDIA
WIDIA Turning Insert: RCMT10T3M0 (MPN 4169977). Key specifications — attr257836: RCMT10T3M0.
WIDIA Turning Insert: RCMT0803M0 (MPN 4170479). Key specifications — attr257836: RCMT0803M0.
WIDIA
WIDIA Turning Insert: RCMT0803M0 (MPN 4170479). Key specifications — attr257836: RCMT0803M0.
WIDIA Turning Insert: RCMT0602M0 (MPN 4170478). Key specifications — attr257836: RCMT0602M0.
WIDIA
WIDIA Turning Insert: RCMT0602M0 (MPN 4170478). Key specifications — attr257836: RCMT0602M0.
WIDIA Turning Insert: RNMG190600RH (MPN 4171532). Key specifications — attr257836: RNMG190600RH.
WIDIA
WIDIA Turning Insert: RNMG190600RH (MPN 4171532). Key specifications — attr257836: RNMG190600RH.
WIDIA Turning Insert: RCMT1606M0 (MPN 4169979). Key specifications — attr257836: RCMT1606M0.
WIDIA
WIDIA Turning Insert: RCMT1606M0 (MPN 4169979). Key specifications — attr257836: RCMT1606M0.
WIDIA Turning Insert: RCMT0803M0 (MPN 4170537). Key specifications — attr257836: RCMT0803M0.
WIDIA
WIDIA Turning Insert: RCMT0803M0 (MPN 4170537). Key specifications — attr257836: RCMT0803M0.
WIDIA Turning Insert: RCMX2006M0T (MPN 4170541). Key specifications — attr257836: RCMX2006M0T.
WIDIA
WIDIA Turning Insert: RCMX2006M0T (MPN 4170541). Key specifications — attr257836: RCMX2006M0T.