SUMITOMOSquare (S) Indexable Turning Inserts

SUMITOMO SPMN423-AC420K Square (S) Indexable Turning Insert

The SUMITOMO Square Turning Insert, model SPMN423 (MPN SPMN423-AC420K), is a square (S) indexable turning insert. It is also referenced as SPMN120312. This product is designed for turning operations.

SKU 3G-OTH-229233

Also listed as: SPMN423AC420K · SPMN423 AC420K

Brand

SUMITOMO

Item

SPMN423-AC420K Square

Part Number

SPMN423-AC420K

Local availability & support — Singapore

Local office: 20 Woodlands Link #09-05, Singapore 738733
Phone: +65 8878 8355
Payment: Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Technical Specifications

SUMITOMO

Manufacturer Part Number

SPMN423-AC420K 

Technical Documents

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SUMITOMO Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SUMITOMO Square Turning Insert, model SPMN423 (MPN SPMN423-AC420K), is a square (S) indexable turning insert. It is also referenced as SPMN120312. This product is designed for turning operations.

Frequently Asked Questions

What is the SUMITOMO SPMN423 square turning insert used for?

The SUMITOMO SPMN423 (SPMN120312) is a square indexable turning insert designed for general turning operations on lathes. It is commonly used in metalworking to shape workpieces, reduce diameter, or create smooth finishes across industries such as automotive, aerospace, and general machining.

What are the specifications of the SUMITOMO SPMN423 turning insert?

The SUMITOMO SPMN423 turning insert has a square (S) shape and is referenced as both SPMN423 and SPMN120312. The manufacturer part number is SPMN423-AC420K. It is an indexable insert for turning applications, with dimensions corresponding to the SPMN423/SPMN120312 standard.

Where to buy SUMITOMO SPMN423 turning inserts worldwide?

3G Electric supplies SUMITOMO SPMN423 (SPMN423-AC420K) square turning inserts to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this SUMITOMO insert.

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

To select the correct SUMITOMO turning insert like the SPMN423, match the insert shape (square), size (SPMN423/SPMN120312), and grade (AC420K) to your workpiece material and operation. Consult the lathe tool holder compatibility and cutting parameters. 3G Electric can help you source the right SUMITOMO insert for your application.

Used in

Common applications for SUMITOMO

General machining — Sumitomo SNMG square turning inserts for turning, facing, and profiling on steel and cast iron workpieces.

CNC turning — Sumitomo TNMG triangle inserts for medium to rough turning operations on stainless steel and alloy steels.

Parting and grooving — Sumitomo SG-series inserts for cut-off and groove creation on lathes and turning centers.

Automotive component manufacturing — Sumitomo SNMG and TNMG inserts for machining engine parts, transmission components, and brake discs.

Aerospace machining — Sumitomo inserts with wear-resistant grades for turning high-temperature alloys and titanium.

Maintenance and repair — Sumitomo indexable inserts for general turning and grooving in tool rooms and maintenance shops.

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SUMITOMO Products

3G Electric supplies SUMITOMO square (s) 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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