Hertel GH99914222 Square End Mill 13/16 in 4 Flute Hss Tin

Product Description

The HERTEL GH99914222 is a 4-flute square end mill designed for general-purpose milling operations in machine shops and manufacturing environments. Built from M7 high speed steel with a titanium nitride (TiN) coating, it offers improved surface hardness and wear resistance over uncoated HSS tooling. The mill measures 13/16 inches (0.8125 inches) in diameter with a 1-3/4 inches length of cut and a 3-3/4 inches overall length. A 1/2 inches shank diameter provides secure clamping in standard collets and end mill holders. This tool is installed and run by machinists and CNC operators working on ferrous and non-ferrous materials.

This end mill is suited for peripheral and slot milling in light to medium-duty applications. The 30-degree right-hand spiral flute geometry promotes efficient chip evacuation during cutting passes. Its regular-length configuration fits standard setups without extended reach requirements. The non-centercutting design means it is intended for side milling and peripheral cuts rather than plunge entry. It is a common choice for job shops running manual knee mills, CNC machining centers, and similar equipment where a reliable HSS end mill at a standard diameter is needed.

Key Features

• M7 high speed steel construction with TiN coating for extended tool life
• 4-flute spiral design with 30-degree helix angle for efficient chip flow
• Right-hand cut and right-hand flute direction for standard milling setups
• Non-centercutting geometry suited for side and peripheral milling
• Regular length configuration fits standard collet and end mill holder setups
• 1/2 inches shank diameter compatible with common toolholding systems

Compatibility

Designed as a standard-shank replacement end mill for use in any machine tool accepting a 1/2 inches round shank, including CNC machining centers and manual milling machines equipped with ER, R8, or similar collet systems.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and the machine is powered down or in an e-stop state before loading or removing tooling. Use a properly sized collet or end mill holder and verify runout with an indicator before beginning a cut. Follow the machine tool manufacturer guidelines and applicable shop safety procedures when selecting feeds, speeds, and depth of cut for the workpiece material.