Original Sumitomo SNMN433 AC420K Carbide Turning Insert – Square | Cast Iron SNMN120412

Name: Original Sumitomo SNMN433 AC420K Carbide Turning Insert - Square | Cast Iron
Brand: Sumitomo
SKU: SNMN433 AC420K
Price: 15.05 USD
Availability: PreOrder
Rating: 4.9 (32 reviews)

Brand: Sumitomo

Price on request

★★★★⯨ 4.9 (32 reviews)

Turning Insert: SNMN433 AC420K, Carbide – AC420K, Coated Finish, 1/2″ Long, 1/2″ Inscribed Circle, 3/64″ Corner Radius, 90.00 deg S – Square, Series SN

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Specifications
Brand	Sumitomo
Part No. (MPN)	SNMN433
Grade	AC420K
Type	Turning Insert
Shape	Square
Suitable Material	Cast iron
Category	Turning Inserts

Sumitomo SNMN433 AC420K – Turning Carbide Insert

Turning Insert: SNMN433 AC420K, Carbide – AC420K, Coated Finish, 1/2″ Long, 1/2″ Inscribed Circle, 3/64″ Corner Radius, 90.00 deg S – Square, Series SN

What machinists are saying about SNMN433: The AC420K is a tough K20 grade that handles heavy depth of cut and interruptions. All grades are available with the Sumitomo FF Coating (Fine and Flat) for prolonged tool life and chipping … The AC420K is a tough K20 grade that handles heavy depth of cut and interruptions. All grades are available with the Sumitomo FF Coating (Fine and Flat) for prolonged tool life and chipp

Key Specifications

Brand	Sumitomo
Model	SNMN433
Grade	AC420K
Coating	tin
Insert Shape	Square
Clearance Angle	0°
Workpiece Materials	Cast Iron
Application	Interrupted Cutting
Quantity	1 PCS

Grade AC420K Characteristics

Sumitomo AC420K uses tin coating tuned for interrupted cutting on cast iron. The chemistry favors edge stability under interrupted cutting and resists thermal cracking on longer passes.

Features & Benefits

100% Genuine Sumitomo – Original product with full quality guarantee, traceable batch.
tin Coating – Superior wear resistance and extended tool life under continuous load.
Predictable Wear – Even flank wear pattern simplifies tool-life prediction and scheduling.
QC Inspected – Each batch sampled for edge profile, dimensional accuracy, and coating adhesion.
Bulk Pricing Available – Discount tiers for production-volume orders; contact sales.
Optimized Chip Breaker – Engineered chip geometry reduces re-cutting and machine downtime.

Recommended Applications

Interrupted Cutting of cast iron in production CNC lines
Holds dimensional tolerance over multiple indexings (insert)
Designed for shop conditions typical of Sumitomo tooling users worldwide
Pairs well with through-coolant setups for chip evacuation

Buying Considerations

Single-pack option — useful for prototype runs or qualification before bulk commitment. Entry-tier pricing makes this a low-risk option for trialing Sumitomo tooling on a new material.

Tip: Match this insert to a holder whose seat matches the ISO designation. If you’re unsure, send us the holder model and we’ll confirm compatibility before shipping.

Weight	0.1 kg
Dimensions	15 × 18 × 4 cm

What Buyers Say

★★★★★

100% recomendados los insertos, y el paquete está llegando muy rapido

Lizeth Villasana Rosales, Mexico via aliexpress

★★★★★

Товар доставлен, оригинальный, упаковка отличная! Всё полностью соответствует описанию.

YUrij S., Russia via Ozon

★★★★★

По сырой стали пойдёт. Большой радиус при вершине, больше нагрузка.

Vladimir G., Russia via Ozon

★★★★★

A good product and the seller offered a nice discount

Michael, American via Amazon

★★★★★

the product is like show in the picture

Jose, American via Amazon

★★★★★

дошло быстрее чем заявлено. все супер

Mariya R., Russia via Ozon

SKU: SNMN433 AC420K Categories: Turning Inserts, Insert, Square (SNMN) Brand: Sumitomo

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Original Sumitomo SNMN433 AC420K Carbide Turning Insert – Square | Cast Iron SNMN120412

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