Original Sumitomo CNMA542-AC4015K Carbide Turning Insert – Diamond 80° | Steel, Cast Iron CNMA150608

Name: Original Sumitomo CNMA542-AC4015K Carbide Turning Insert - Diamond 80° | Steel, Cast Iron
Brand: Sumitomo
SKU: CNMA542-AC4015K
Price: 25.11 USD
Availability: PreOrder
Rating: 4.9 (67 reviews)

Brand: Sumitomo

$25.11

★★★★⯨ 4.9 (67 reviews)

Turning Insert: CNMA542-AC4015K, Carbide – AC4015K, Al2O3 & TiCN Finish, 16.10 mm Long, 80.00 deg C – Diamond (Rhombic) 80-Deg, Series AC4000K

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Specifications
Brand	Sumitomo
Part No. (MPN)	CNMA542-AC4015K
Type	Turning Insert
Shape	Diamond 80°
Suitable Material	Steel
Category	Turning Inserts

Sumitomo CNMA542-AC4015K – Turning Carbide Insert

Turning Insert: CNMA542-AC4015K, Carbide – AC4015K, Al2O3 & TiCN Finish, 16.10 mm Long, 80.00 deg C – Diamond (Rhombic) 80-Deg, Series AC4000K

What machinists are saying about CNMA542-AC4015K: Sumitomo Turning Insert: CNMA542-AC4015K, Carbide Al2O3 & TiCN Finish, 16.10 mm Long, 80.00 deg C – Diamond (Rhombic) 80-Deg, Series AC4000K Grade Name: AC4015K Insert Material: CARBIDE – CVD COATED ISO Range: K05-25 Coating: Absotech Material Description: Cast Iron Grade Description: Our 1st recommended grade for turning ductile cast iron. New high-adhesion, high-strength

Key Specifications

Brand	Sumitomo
Model	CNMA542-AC4015K
Coating	Al2O3
Insert Shape	Diamond 80°
Clearance Angle	0°
IC (Inscribed Circle)	4mm
Thickness	1.5mm
Workpiece Materials	Steel, Cast Iron
Application	Rough Machining
Quantity	1 PCS

Features & Benefits

100% Genuine Sumitomo – Original product with full quality guarantee, traceable batch.
Al2O3 Coating – Superior wear resistance and extended tool life under continuous load.
Ready Stock – In-stock for same-day dispatch from our CNC tooling warehouse.
Precision Ground – Tight dimensional tolerances for repeatable performance across batches.
Thermal Resistance – al2o3 layer holds hardness above typical cutting-zone temperatures.
Optimized Chip Breaker – Engineered chip geometry reduces re-cutting and machine downtime.

Recommended Applications

Rough Machining of steel, 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.

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: CNMA542-AC4015K Categories: Insert, Turning Inserts, Diamond 80° (CNMA) Brand: Sumitomo

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Original Sumitomo CNMA542-AC4015K Carbide Turning Insert – Diamond 80° | Steel, Cast Iron CNMA150608

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