Original Sumitomo CNMA433 AC420K Carbide Turning Insert – Diamond 80° | Steel & More CNMA120412

Name: Original Sumitomo CNMA433 AC420K Carbide Turning Insert - Diamond 80° | Steel &amp; More
Brand: Sumitomo
SKU: CNMA433 AC420K
Price: 14.33 USD
Availability: PreOrder
Rating: 4.6 (50 reviews)

Brand: Sumitomo

$14.33

★★★★⯨ 4.6 (50 reviews)

Turning Insert: CNMA433 AC420K, Carbide – AC420K, Coated Finish, 0.5079″ Long, 0.5000″ Inscribed Circle, 0.0469″ Corner Radius, 80.00 deg C – Diamond (Rhombic) 80-Deg, Series CN

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Specifications
Brand	Sumitomo
Part No. (MPN)	CNMA433
Grade	AC420K
Type	Turning Insert
Shape	Diamond 80°
Suitable Material	Steel
Category	Turning Inserts

Sumitomo CNMA433 AC420K – Turning Carbide Insert

Turning Insert: CNMA433 AC420K, Carbide – AC420K, Coated Finish, 0.5079″ Long, 0.5000″ Inscribed Circle, 0.0469″ Corner Radius, 80.00 deg C – Diamond (Rhombic) 80-Deg, Series CN

Industry references for Sumitomo CNMA433: 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 … CNMA433 AC420K J21 Identifying order number CNMA433 AC420K J3 Company code SU – Sumitomo NSM Standard number of properties layout DIN4000-76 BLD Tool style code 3 A1 Insert included angl

Key Specifications

Brand	Sumitomo
Model	CNMA433
Grade	AC420K
Coating	tin
Insert Shape	Diamond 80°
Clearance Angle	0°
Workpiece Materials	Steel, Stainless Steel, Cast Iron, Non-ferrous
Application	Interrupted Cutting
Geometry	Positive
Quantity	1 PCS

Why Grade AC420K

Sumitomo’s AC420K sits between general-purpose and high-performance offerings — strong enough for production interrupted cutting on steel, stainless steel, cast iron, non-ferrous, conservative enough to forgive the occasional spike in feed rate. tin layer keeps cutting temperatures workable.

Features & Benefits

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

Recommended Applications

Interrupted Cutting of steel, stainless steel, cast iron, non-ferrous in production CNC lines
Suitable for both wet and dry machining conditions
CNC lathe and machining center compatible
Effective in interrupted and continuous cutting passes

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: CNMA433 AC420K Categories: Insert, Turning Inserts, Diamond 80° (CNMA) Brand: Sumitomo

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Original Sumitomo CNMA433 AC420K Carbide Turning Insert – Diamond 80° | Steel & More CNMA120412

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