Widia 5879145 Square End Mill 1/4 in 4 Flute Solid Carbide Tialn

Product Description

The WIDIA 5879145 is a 4-flute solid carbide square end mill designed for high-performance milling in a wide range of metalworking applications. It measures 1/4 inch in diameter with a 1/2-inch length of cut and a 2-inch overall length. The tool is finished with a TiAlN coating that improves heat resistance and extends tool life at elevated cutting speeds. A 30-degree right-hand helical flute geometry promotes efficient chip evacuation and stable cutting action. This end mill is intended for use by machinists and CNC operators in production and job-shop environments.

This end mill is suited for milling operations on steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and hard materials. The center-cutting design allows for plunge entry, making it usable in slotting, profiling, and pocket-milling operations. The straight cylindrical shank accepts standard collet chucks and end mill holders. It belongs to the WIDIA I4S series, which is engineered for regular-length reach in precision metalcutting on CNC machining centers and manual mills.

Key Features

• Solid carbide construction for rigidity and wear resistance in ferrous and hard materials
• TiAlN coating for elevated thermal resistance and longer tool life at high cutting speeds
• 4-flute, right-hand helical geometry at 30 degrees for smooth chip flow and surface finish
• Center-cutting capable - supports plunge, slot, profile, and pocket operations
• Straight cylindrical shank compatible with standard collet and end mill holder tooling
• Part of the WIDIA I4S regular-length series for consistent dimensional performance

Compatibility

Designed for use in standard 1/4-inch collet chucks and end mill holders on CNC machining centers and manual milling machines. Rated for primary workpiece materials including steel (P), stainless steel (M), cast iron (K), non-ferrous metals (N), superalloys and titanium (S), and hard materials (H).

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer guidelines for toolholder torque and runout specifications. Ensure the machine spindle is fully stopped and power is locked out before changing or seating the end mill. Seat the shank fully into the collet or holder to the recommended minimum grip depth to prevent pullout under load. Verify runout at the cutting diameter before beginning production cuts.