Original Korloy CNMG642-B25 NC3120 Carbide Turning Insert – Diamond 80° | Steel & More

Name: Original Korloy CNMG642-B25 NC3120 Carbide Turning Insert - Diamond 80° | Steel &amp; More
Brand: Korloy
SKU: CNMG642-B25 NC3120
Rating: 4.8 (38 reviews)

Brand: Korloy

$39.36

★★★★⯨ 4.8 (38 reviews)

Buy original Korloy CNMG642-B25 (CNMG642-B25 NC3120) NC3120 Carbide Insert for steel, stainless steel, aluminum machining. Diamond coating. From $39.36. Free…

500 in stock

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Korloy CNMG642-B25 NC3120 – Turning Carbide Insert

Specifications:
Subcategory: Indexable Inserts & Blades
Leaf Category: Turning & Boring Carbide Inserts
Brand: KORLOY
Model #: 1-02-025414
Tool Material: Carbide
Unit of Measure: Each
Inventory Status: Order as needed
Catalog Page: 9923
Grade: NC3120
Chipbreaker 3875: B25
Coating: CVD / TiCN+TiC+Al2O3
Insert IC: 3/4″
Insert Radius: 0.031″
Insert Shape & Angle: 80° Diamond
Insert Size: 642
Insert Style: CNMG
Insert Thickness: 1/4″
Relief Angle: 0°
Insert #: CNMG642-B25
Weight: 0.059 lbs.
Designation: CNMG642-B25 NC3120

What machinists are saying about CNMG642-B25: KORLOY 1-02-026024 – CNMG642-B25 NC3030, 80° Diamond, Indexable Carbide Turning / Boring Insert Item # 22-287-524 Write a review Ask a question CNMG642-B25 NC3030 KORLOY 1-02-026024 Retail Price: $39.36 Price: $24.80 Manufacturer Korloy Link to Mfr eCatalog – + (min 10) Add to cart Add to wishlist Email a friend KORLOY AMERICA INC. Brand Home Technical/Extra Information Shippin

Key Specifications

Brand	Korloy
Model	CNMG642-B25
Grade	NC3120
Coating	Diamond
Insert Shape	Diamond 80°
Clearance Angle	0°
Workpiece Materials	Steel, Stainless Steel, Aluminum
Application	General Machining
Geometry	Negative
Quantity	1 PCS

Grade NC3120 Characteristics

Korloy NC3120 uses Diamond coating tuned for general machining on steel, stainless steel, aluminum. The chemistry favors edge stability under interrupted cutting and resists thermal cracking on longer passes.

Features & Benefits

100% Genuine Korloy – Original product with full quality guarantee, traceable batch.
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.
Diamond Coating – Superior wear resistance and extended tool life under continuous load.
Optimized Chip Breaker – Engineered chip geometry reduces re-cutting and machine downtime.

Recommended Applications

General Machining of steel, stainless steel, aluminum in production CNC lines
Useful for batch production where tool-life predictability matters
Performs across a range of cutting speeds and feed rates
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 Korloy 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	0.059 kg
Dimensions	15 × 18 × 4 cm

SKU: CNMG642-B25 NC3120 Category: Insert Brand: Korloy

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