Widia 5879213 Square End Mill 3/8 in 4 Flute Solid Carbide

Product Description

The WIDIA 5879213 is a 4-flute solid carbide square end mill designed for precision milling in demanding metalworking applications. With a 3/8 inch mill diameter and a 5/8 inch length of cut, it delivers clean, accurate square shoulders and slots across a broad range of workpiece materials. The 30-degree right-hand helical flute geometry promotes efficient chip evacuation and reduces cutting forces. This end mill ships in a bright, uncoated finish and is part of the WIDIA I4S series. It is installed and used by machinists and CNC operators in job shop, production, and maintenance machining environments.

This end mill is suited for milling steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and hard materials. The centercutting design allows plunge entry, making it versatile for slotting, profiling, and pocket milling operations. The straight cylindrical shank provides reliable clamping in standard collet and end mill holders. With a regular-length configuration and a 2 inch overall length, it fits standard tooling setups on vertical and horizontal machining centers as well as manual mills.

Key Features

• 3/8 inch diameter with 5/8 inch length of cut for precise material removal
• 4-flute solid carbide construction for rigidity and wear resistance
• 30-degree right-hand helix for efficient chip flow and reduced cutting forces
• Centercutting geometry enables plunge milling capability
• Bright, uncoated finish suitable for a wide range of workpiece materials including superalloys and hard materials
• Straight cylindrical shank for compatibility with standard collet and end mill holders

Compatibility

Designed as a replacement-style solid carbide square end mill compatible with standard 3/8 inch collet holders, end mill holders, and shrink-fit tooling used on CNC machining centers and manual milling machines. Suitable for workpiece materials classified under ISO material codes P, M, K, N, S, and H.

Installation Notes

Installation is performed by a machinist or CNC operator. Before changing tooling, ensure the machine spindle is fully stopped and all power is isolated per shop lockout/tagout procedures. Seat the shank fully in the collet or holder and verify runout with a dial indicator before cutting. Always confirm feed rates, speeds, and depth of cut against the manufacturer tooling data for the specific workpiece material before beginning the operation.