Original Sumitomo NUCNMA433 BN350 Carbide Turning Insert | Steel, Hardened Steel

Name: Original Sumitomo NUCNMA433 BN350 Carbide Turning Insert | Steel, Hardened Steel
Brand: Sumitomo
SKU: NUCNMA433 BN350
Price: 41.69 USD
Availability: PreOrder
Rating: 4.9 (37 reviews)

Brand: Sumitomo

$41.69

★★★★⯨ 4.9 (37 reviews)

Turning Insert: NUCNMA433 BN350, PCBN – BN350, Bright/No Finish, Neutral, 0.0906″ Long, 0.5000″ Inscribed Circle, 0.0469″ Corner Radius, 80.00 deg C – Diamond (Rhombic) 80-Deg, Series CNMA

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Specifications
Brand	Sumitomo
Part No. (MPN)	NUCNMA433
Grade	BN350
Type	Turning Insert
Suitable Material	Steel
Category	Turning Inserts

Sumitomo NUCNMA433 BN350 – Turning Carbide Insert

The Sumitomo NUCNMA433 turning carbide insert, grade BN350, excels in interrupted cutting operations on steel and hardened steel workpieces, where its uncoated, polycrystalline cubic boron nitride (PCBN) substrate provides exceptional wear resistance and maintains a sharp cutting edge. This insert’s geometry, featuring a 0.0469″ corner radius and 80-degree rhombic shape, allows for smooth cutting action and minimized vibration. With its 0.5000″ inscribed circle and 0.0906″ length, the NUCNMA433 BN350 is well-suited for a variety of turning applications where toughness and dimensional accuracy are crucial.

What machinists are saying about NUCNMA433: Find Turning Insert: NUCNMA433 BN350, PCBN at MSC Industrial Supply, serving the metalworking, safety, and MRO industries for over 75 years Find Turning Insert: NUSNMA433 BN350, PCBN at MSC Industrial Supply, serving the metalworking, safety, and MRO industries for over 75 years Shop Sumitomo NUCNMA433 BN350 PCBN Turning Insert Uncoated, 1/2" Inscribed Circle, 3/64" C

Key Specifications

Brand	Sumitomo
Model	NUCNMA433
Grade	BN350
Coating	Uncoated
Workpiece Materials	Steel, Hardened Steel
Application	Interrupted Cutting
Geometry	Negative
Quantity	1 PCS

Why Grade BN350

Sumitomo’s BN350 sits between general-purpose and high-performance offerings — strong enough for production interrupted cutting on steel, hardened steel, conservative enough to forgive the occasional spike in feed rate. Uncoated 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.
Predictable Wear – Even flank wear pattern simplifies tool-life prediction and scheduling.
Professional CNC Tooling – Compatible with major CNC machine brands (Mazak, DMG, Haas, Doosan).
Optimized Chip Breaker – Engineered chip geometry reduces re-cutting and machine downtime.

Recommended Applications

Interrupted Cutting of steel, hardened steel in production CNC lines
CNC lathe and machining center compatible
Effective in interrupted and continuous cutting passes
Suitable for both wet and dry machining conditions

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.

Reminder: Holder rigidity, lead angle, and approach all influence how this insert wears. Pair with a holder rated for the same cutting forces.

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: NUCNMA433 BN350 Categories: Insert, Turning Inserts, Diamond 80° (CNMA) Brand: Sumitomo

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Original Sumitomo NUCNMA433 BN350 Carbide Turning Insert | Steel, Hardened Steel

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