Hertel 750491 Square End Mill 5/32 in 4 Flute Solid Carbide

Product Description

The HERTEL 750491 is a solid carbide square end mill designed for precision milling in demanding shop environments. It features a 5/32 inch (0.1562 inch) cutting diameter, a 5/16 inch (0.3125 inch) length of cut, and a 3/16 inch (0.1875 inch) shank diameter. Overall length is 2 inches. The four-flute geometry with a 30-degree spiral helix and TiCN coating delivers efficient chip evacuation and extended tool life on ferrous and non-ferrous materials. The micrograin carbide substrate provides rigidity and edge retention in high-speed applications. This is a stub-length, centercutting, right-hand cut and right-hand flute end mill suited for slotting, profiling, and plunge operations.

The HERTEL 750491 is intended for use in CNC machining centers, knee mills, and manual milling machines where tight tolerances and fine finishes are required. Its stub-length configuration reduces deflection in short-reach applications, making it well suited for finish passes and shallow slot cutting in steel, stainless, aluminum, and similar materials. Machinists and tool-and-die professionals working in production or toolroom environments will find this tool appropriate for general-purpose milling tasks requiring consistent dimensional accuracy.

Key Features

• Solid micrograin carbide construction for rigidity and extended tool life
• TiCN finish reduces friction and improves wear resistance on hard materials
• 4-flute spiral design with 30-degree helix for efficient chip evacuation
• Centercutting geometry allows direct plunge entry into workpiece
• Right-hand cut and right-hand flute configuration for standard spindle direction
• Stub-length design minimizes deflection in short-reach milling operations
• Mill diameter tolerance of +0.000 / -0.002 inches for close-tolerance work

Compatibility

Designed as an OEM-style replacement or standard tooling option for milling applications requiring a 3/16 inch shank, compatible with standard collets and end mill holders accepting a 3/16 inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist. Ensure the milling machine spindle is fully stopped and locked out before mounting or removing the end mill. Seat the shank fully into the collet or end mill holder and torque the retaining mechanism according to the toolholder manufacturer specifications. Verify runout with an indicator before commencing a cut to avoid premature tool failure or dimensional error.