R424.9-13T308-23 1025 Slot Milling Insert | High-Precision Carbide Insert for Side & Slot Milling

Product Description:

The R424.9-13T308-23 1025 is a high-performance milling insert from Coromant, specifically designed for precision slot milling, side milling, and cavity machining. Built with the reliable 1025 carbide grade, it provides excellent wear resistance and strong deformation stability, enabling long tool life at medium to high cutting speeds.

Featuring the 23-style chip breaker, this insert delivers smooth chip evacuation and reduced cutting forces—critical for deep or narrow slot machining. The cutting edge geometry enhances sharpness while maintaining the strength needed to resist chipping under heavy side loads. Its stable triangular design ensures high rigidity and consistent dimensional accuracy throughout the machining process.

Whether it's mass-production metalworking, precision slot machining, or efficient cutting of steels and machinable cast iron, the R424.9-13T308-23 1025 offers outstanding reliability and high-value performance, making it a preferred choice for machining centers, manufacturing plants, and precision component producers.

Key Features

• 1025 wear-resistant grade ideal for continuous cutting in steels and cast iron.
• 23 chip-breaker design ensures efficient chip flow and reduced heat generation.
• Reinforced cutting-edge geometry provides high resistance to chipping during side milling.
• Excellent dimensional accuracy for consistent slot width and surface quality.
• Versatile milling capability for slotting, side milling, cavity machining, light roughing and semi-finishing.

Suitable Materials

• Steel (ISO P)
• Machinable cast iron (ISO K)
• Light-duty stainless steel (under proper conditions)

Typical Applications

• Precision slot milling and side machining
• Cavity machining in molds and structural parts
• Batch metal part production
• High-efficiency machining in automotive, mold-making, and general engineering