Hertel 750357 Square End Mill 3/8 in 4 Flute Solid Carbide

Product Description

The HERTEL 750357 is a solid carbide square end mill designed for precision milling operations in metalworking and machining applications. It features a 3/8 inch cutting diameter, a 1-1/8 inch length of cut, and a 3 inch overall length. The four-flute, right-hand spiral design with a 30-degree helix angle promotes efficient chip evacuation and smooth cutting action. A titanium nitride (TiN) finish increases surface hardness and reduces friction at the cutting edge. This end mill is centercutting, allowing it to plunge directly into the workpiece. It is intended for use by machinists and tooling professionals operating CNC mills, manual knee mills, and similar machine tools.

This end mill is suited for slotting, profiling, and peripheral milling in ferrous and non-ferrous materials. The 3/8 inch shank diameter fits standard ER collets, end mill holders, and side-lock holders commonly found in production and job shop environments. The 30-degree helix angle provides a balance between cutting efficiency and tool stability, making it appropriate for general-purpose milling at moderate to high surface footage. The solid carbide construction withstands higher heat and wear compared to high-speed steel, supporting longer tool life in demanding applications.

Key Features

• Solid carbide construction for high wear resistance and rigidity
• TiN finish reduces friction and extends cutting edge life
• 4-flute, right-hand spiral design with 30-degree helix angle for efficient chip flow
• Centercutting capability allows direct plunge entry into workpiece
• Right-hand cut and right-hand flute configuration for standard spindle rotation
• 3/8 inch shank diameter compatible with common collet and holder systems

Compatibility

Designed as an OEM-style replacement or standard tooling option for CNC and manual milling machines accepting a 3/8 inch shank end mill.

Installation Notes

Installation should be performed by a qualified machinist following machine tool safety procedures. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Seat the shank to the recommended engagement depth in the collet or holder and torque the retention hardware according to the machine manufacturer's specifications. Verify runout with a dial indicator before commencing the cut.