Original Sumitomo CNMA434 AC405K Carbide Turning Insert – Diamond 80° | Steel & More CNMA120416

Name: Original Sumitomo CNMA434 AC405K Carbide Turning Insert - Diamond 80° | Steel &amp; More
Brand: Sumitomo
SKU: CNMA434 AC405K
Price: 14.33 USD
Availability: PreOrder
Rating: 4.9 (45 reviews)

Brand: Sumitomo

$14.33

★★★★⯨ 4.9 (45 reviews)

Turning Insert: CNMA434 AC405K, Carbide – AC405K, Coated Finish, 0.5079″ Long, 0.5000″ Inscribed Circle, 0.0625″ Corner Radius, 80.00 deg C – Diamond (Rhombic) 80-Deg, Series CN

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Specifications
Brand	Sumitomo
Part No. (MPN)	CNMA434
Grade	AC405K
Type	Turning Insert
Shape	Diamond 80°
Suitable Material	Steel
Category	Turning Inserts

Sumitomo CNMA434 AC405K – Turning Carbide Insert

Turning Insert: CNMA434 AC405K, Carbide – AC405K, Coated Finish, 0.5079″ Long, 0.5000″ Inscribed Circle, 0.0625″ Corner Radius, 80.00 deg C – Diamond (Rhombic) 80-Deg, Series CN

Field reports & vendor notes: AC405K is a K05 grade for finishing gray and ductile cast iron. The AC415K is a general purpose K15 turning grade for gray and ductile cast iron. The AC420K is a tough K20 grade that handles heavy … AC420K: highly stable performance and longer tool life for medium to heavy interrupted cutting (AC415K) and superior toughness (AC420K) AC405K is a K05 grade for finishing gray an

Key Specifications

Brand	Sumitomo
Model	CNMA434
Grade	AC405K
Coating	tin
Insert Shape	Diamond 80°
Clearance Angle	0°
Workpiece Materials	Steel, Stainless Steel, Cast Iron, Non-ferrous
Application	Finish Machining
Geometry	Neutral
Quantity	1 PCS

Grade AC405K Performance Profile

Operators running steel, stainless steel, cast iron, non-ferrous with the Sumitomo AC405K typically report stable wear progression rather than catastrophic edge loss. The tin system is the reason: it slows abrasion at the rake face while keeping the substrate from softening at the cutting zone.

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.
Bulk Pricing Available – Discount tiers for production-volume orders; contact sales.
QC Inspected – Each batch sampled for edge profile, dimensional accuracy, and coating adhesion.
Optimized Chip Breaker – Engineered chip geometry reduces re-cutting and machine downtime.

Recommended Applications

Finish Machining of steel, stainless steel, cast iron, non-ferrous in production CNC lines
Designed for shop conditions typical of Sumitomo tooling users worldwide
Holds dimensional tolerance over multiple indexings (insert)
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.

Note: Compatible tool holders sold separately. Please confirm insert-holder seat compatibility (e.g. ISO seat designation) before ordering.

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: CNMA434 AC405K Categories: Diamond 80° (CNMA), Insert, Turning Inserts Brand: Sumitomo

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Original Sumitomo CNMA434 AC405K Carbide Turning Insert – Diamond 80° | Steel & More CNMA120416

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