Hertel E1039048 Square End Mill 3/4 in 4 Flute Hss

Product Description

The HERTEL E1039048 is a square end mill designed for general-purpose milling operations in metal, alloy, and ferrous workpiece materials. Constructed from M7 high speed steel, this tool delivers consistent performance in light to moderate cutting conditions across manual and CNC machining centers. The 4-flute, right-hand spiral design with a 30-degree helix angle promotes efficient chip evacuation and surface finish. With a 0.75-inch mill diameter and a 1.625-inch length of cut, it suits a wide range of profiling, slotting, and peripheral milling applications. Installation is handled by machinists and tool-and-die professionals working in job shop and production environments.

This end mill fits standard milling chucks, collets, and side-lock holders accepting a 0.75-inch shank diameter. Its regular-length designation and 3.875-inch overall length make it a practical choice for conventional vertical and horizontal milling setups where extended reach is not required. The centercutting geometry allows plunge entry directly into the workpiece, adding flexibility for pocketing and interpolation operations without a pre-drilled entry point.

Key Features

• M7 high speed steel construction for durability in ferrous and general-purpose milling
• 4-flute spiral design with 30-degree helix angle for balanced chip load and surface finish
• Centercutting geometry enables direct plunge milling and pocket entry
• Right-hand cut and right-hand flute configuration for standard milling spindle direction
• Uncoated finish suitable for use with cutting fluids or lubricants appropriate to workpiece material
• Regular length profile at 3.875 inches OAL for rigid setups with minimal deflection

Compatibility

Designed as an OEM-style replacement or direct-fit cutting tool for milling machines and machining centers accepting a 0.75-inch shank diameter, including collet chucks, end mill holders, and side-lock tool holders in that bore size.

Installation Notes

Installation and tool changes should be performed by qualified machinists with the spindle fully stopped and machine power locked out per shop safety procedures. Seat the shank fully in the holder and torque the retention hardware according to the tool-holder manufacturer specifications. Verify runout with a dial indicator before beginning the cut. Select cutting parameters, feeds, and speeds based on workpiece material and machine rigidity.