Original Kennametal NG4250RK KCU25 Carbide Grooving/Parting Insert | Steel

Name: Original Kennametal NG4250RK KCU25 Carbide Grooving/Parting Insert | Steel
Brand: Kennametal
SKU: NG4250RK KCU25
Price: 58.12 USD
Availability: InStock
Rating: 4.6 (58 reviews)

Brand: Kennametal

$58.12

★★★★⯨ 4.6 (58 reviews)

Grooving Insert: NG4250RK KCU25, Carbide – KCU25, AlTiN Finish, Right Hand, 6.350 mm Cutting Width, 6.35 mm Max Depth, Series Top Notch

500 in stock

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Specifications
Brand	Kennametal
Part No. (MPN)	NG4250RK
Grade	KCU25
Suitable Material	Steel
Category	Grooving & Parting Inserts

Kennametal NG4250RK KCU25 – Grooving/Parting Carbide Insert

The Kennametal NG4250RK KCU25 grooving insert excels in general turning applications on steel workpieces, leveraging its TiN coating to minimize wear and friction. With a 6.350 mm cutting width and 6.35 mm maximum depth, this insert is well-suited for efficient parting and grooving operations, particularly where precision and control are key. Its KCU25 carbide grade provides a strong foundation for reliable performance in a variety of steel machining contexts.

Field reports & vendor notes: Products / Metalworking Tools / Turning / Grooving and Cut-Off / Face Grooving / Top Notch™ Grooving / Top Notch™ Inserts / Top Notch™ Groove and Turn Inserts / NG-K List price: $49.25 /each Contact our sales team to discover your pricing options Kennametal Grooving Insert: NG4250RK KCU25B, Carbide KCU25B, AlTiN, AlTiSiN & TiSiN Finish, Right Hand, 0.2500" Cutting Widt

Key Specifications

Brand	Kennametal
Model	NG4250RK
Grade	KCU25
Coating	TiN
Workpiece Materials	Steel
Application	General Turning
Geometry	Chipbreaker k
Quantity	1 PCS

Grade KCU25 Characteristics

Kennametal KCU25 uses TiN coating tuned for general turning on steel. The chemistry favors edge stability under interrupted cutting and resists thermal cracking on longer passes.

Features & Benefits

100% Genuine Kennametal – Original product with full quality guarantee, traceable batch.
Edge Stability – Substrate chemistry tuned to limit micro-chipping on steel interruptions.
Thermal Resistance – tin layer holds hardness above typical cutting-zone temperatures.
Professional CNC Tooling – Compatible with major CNC machine brands (Mazak, DMG, Haas, Doosan).
Ready Stock – In-stock for same-day dispatch from our CNC tooling warehouse.
Optimized Chip Breaker – Engineered chip geometry reduces re-cutting and machine downtime.

Recommended Applications

General Turning of steel in production CNC lines
Holds dimensional tolerance over multiple indexings (insert)
Designed for shop conditions typical of Kennametal 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. Mid-tier pricing reflects Kennametal’s production-grade tolerances rather than economy substrate.

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

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