Sandvik Coromant 7254439 Square End Mill 1/4 in 5 Flute

Product Description

The SANDVIK COROMANT 7254439 is a single-end, square-profile solid carbide end mill designed for edging and profiling operations in demanding machining environments. With a 0.25-inch mill diameter and a 0.75-inch length of cut, it delivers precise material removal on hardened and abrasive workpiece materials. The 5-flute geometry paired with a 40-degree helix angle promotes efficient chip evacuation and smooth surface finishes at elevated feed rates. A diamond coating provides exceptional hardness and wear resistance, extending tool life in non-ferrous, composite, and abrasive material applications. Licensed machinists and CNC operators working in aerospace, mold-and-die, and precision machining shops are the primary end users of this tool.

This end mill is suited for edging, slotting, and peripheral milling operations where tight tolerances and surface finish quality are critical. It is part of the CoroMill Plura solid carbide end mill series, which is engineered for high-performance cutting in non-ferrous metals, carbon fiber reinforced polymers (CFRP), graphite, and other abrasive materials. The right-hand cutting and right-hand flute direction make it compatible with standard CNC machining center spindles. The 0.25-inch shank diameter fits standard ER and shrink-fit collet systems.

Key Features

• 0.25-inch mill diameter with 0.75-inch length of cut for precise edging operations
• 5-flute spiral geometry with 40-degree helix angle for high feed rates and smooth chip flow
• Diamond coating for maximum wear resistance in abrasive and non-ferrous materials
• Solid carbide construction for rigidity and dimensional stability under load
• Center-cutting capable - suitable for plunge entry where required
• Single-end configuration with 2.5-inch overall length and 0.25-inch shank diameter

Compatibility

Part of the CoroMill Plura solid carbide end mill series, designed for edging applications in abrasive and non-ferrous materials. Fits standard 1/4-inch collet and shrink-fit toolholding systems. No additional specific model compatibility data was provided in the product input.

Installation Notes

Installation should be performed by a qualified CNC machinist or toolroom technician. Ensure the spindle is fully stopped and the machine is in a safe state before changing tooling. Seat the shank fully into the collet or toolholder and torque the retention system to the toolholder manufacturer's specification. Verify runout with a dial indicator before beginning a production cut, as excessive runout accelerates wear on diamond-coated tools.