Hertel GG99914167 Square End Mill 1-3/4 in 6 Flute Hss

Product Description

The HERTEL GG99914167 is a square end mill designed for precision milling operations in metal and industrial materials. Built from M7 high speed steel, this tool features a 1.75-inch cutting diameter, a 1.5-inch length of cut, and six spiral flutes with a 30-degree helix angle for efficient chip evacuation and smooth cutting action. It is a single-end, uncoated tool with a 0.75-inch shank diameter and an overall length of 3.875 inches. Right-hand cut and right-hand flute orientation make it compatible with standard milling machine spindle configurations. The tool is non-centercutting and intended for peripheral and side milling rather than plunge operations.

This end mill is suited for general-purpose milling in job shops, tool rooms, and production environments. It performs well in slotting, profiling, and contouring operations on ferrous metals, alloy steels, and similar materials. The regular-length body and six-flute configuration make it a practical choice for finishing passes and medium-stock-removal applications where surface finish and dimensional accuracy matter. Machinists and toolroom operators running vertical or horizontal mills will find this geometry appropriate for standard milling work at conventional cutting speeds for HSS tooling.

Key Features

• 1.75-inch cutting diameter with a 1.5-inch length of cut for solid material engagement
• Six spiral flutes at a 30-degree helix angle for improved chip flow and reduced cutting forces
• M7 high speed steel construction provides good toughness and wear resistance in ferrous materials
• 0.75-inch shank diameter fits standard R8, CAT, and other common toolholders
• Right-hand cut and right-hand flute orientation for use with standard milling spindles
• Non-centercutting design; intended for side milling, profiling, and slotting rather than plunge entry

Compatibility

Designed as an OEM-style replacement or standard toolroom end mill for use in vertical and horizontal milling machines accepting a 0.75-inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist or toolroom operator. Secure the shank fully in a collet, end mill holder, or milling chuck to the depth recommended by the toolholder manufacturer, and verify runout before cutting. Power down and lock out the machine spindle before changing or adjusting the tool. Because this is a non-centercutting tool, avoid direct axial plunge cuts; ramp or helical entry is required when full-depth slot entry is necessary.