Original Iscar CNMG644-NR IC9250 Carbide Insert – Diamond 80° | Cast Iron, Heat-resistant

Name: Original Iscar CNMG644-NR IC9250 Carbide Insert - Diamond 80° | Cast Iron, Heat-resistant
Brand: Iscar
SKU: CNMG644-NR IC9250
Rating: 5 (36 reviews)

Brand: Iscar

$47.50

★★★★★ 5 (36 reviews)

Buy original Iscar CNMG644-NR (CNMG644-NR IC9250) IC9250 Carbide Insert for cast iron, heat-resistant machining. Diamond coating. From $47.5. Free shipping. …

500 in stock

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Iscar CNMG644-NR IC9250 – Carbide Insert

Specifications:
Subcategory: Indexable Inserts & Blades
Leaf Category: Turning & Boring Carbide Inserts
Brand: ISCAR
Model #: 5591696
Tool Material: Carbide
Unit of Measure: Each
Inventory Status: Order as needed
Catalog Page: 9923
Grade: IC9250
Chipbreaker 3875: NR
Coating: CVD / TiCN+Al2O3+TiN
Insert IC: 3/4″
Insert Radius: 0.063″
Insert Shape & Angle: 80° Diamond
Insert Size: 644
Insert Style: CNMG
Insert Thickness: 1/4″
Relief Angle: 0°
Insert #: CNMG644-NR
Weight: 0.059 lbs.
Designation: CNMG644-NR IC9250

Industry references for Iscar CNMG644-NR: Find Turning Insert: CNMG644NR, Carbide at MSC Industrial Supply, serving the metalworking, safety, and MRO industries for over 75 years CNMG-NR : Double-sided 80° rhombic inserts with a special chipformer for heavy machining. (-) Double-Sided 80° Rhombic Inserts with a Special Chipformer for Heavy Machining (+) ISCAR 5590640 – CNMG 644-NR IC907, 80° Diamond, Indexable Carbide

Key Specifications

Brand	Iscar
Model	CNMG644-NR
Grade	IC9250
Coating	Diamond
Insert Shape	Diamond 80°
Clearance Angle	0°
Workpiece Materials	Cast Iron, Heat-resistant
Application	High-Speed Machining
Geometry	Chipbreaker: nr
Quantity	1 PCS

Grade IC9250 Performance Profile

Operators running cast iron, heat-resistant with the Iscar IC9250 typically report stable wear progression rather than catastrophic edge loss. The diamond 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 Iscar – Original product with full quality guarantee, traceable batch.
Edge Stability – Substrate chemistry tuned to limit micro-chipping on cast iron, heat-resistant interruptions.
Thermal Resistance – diamond 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

High-Speed Machining of cast iron, heat-resistant in production CNC lines
Holds dimensional tolerance over multiple indexings (insert)
Designed for shop conditions typical of Iscar 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 Iscar 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: CNMG644-NR IC9250 Category: Insert Brand: Iscar

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