Hertel E899921319 Square End Mill 3/16 in 4 Flute Hss Tin

Product Description

The HERTEL E899921319 is a double-end, 4-flute square end mill manufactured from high speed steel with a titanium nitride (TiN) finish. It features a 3/16-inch cutting diameter, a 9/32-inch length of cut, and a 3/8-inch shank diameter with an overall length of 2-3/4 inches. The 30-degree spiral flute geometry promotes efficient chip evacuation in a wide range of milling operations. Right-hand cut and right-hand flute configuration are standard. This tool is used by machinists and tool-and-die professionals on manual mills, CNC machining centers, and knee mills for profiling, slotting, and side-milling work in ferrous and non-ferrous materials.

This end mill is suited for light profiling and slotting passes on small-scale workpieces where a compact cutting diameter is required. The double-end design extends usable tool life by providing two cutting ends per shank. The TiN coating adds surface hardness and reduces friction at the cutting edge, helping extend tool life in general-purpose shop environments. It is appropriate for use in job shops, maintenance machining, toolroom work, and production environments running smaller spindles or high-speed machining centers.

Key Features

• 3/16-inch cutting diameter with 9/32-inch length of cut for compact slotting and profiling
• Double-end design provides two usable cutting ends per tool
• TiN finish increases surface hardness and reduces edge friction for extended tool life
• 30-degree helix angle with spiral flute geometry for effective chip flow
• Right-hand cut, right-hand flute configuration for standard milling spindles
• High speed steel construction suitable for general-purpose ferrous and non-ferrous milling

Compatibility

Designed as a general-purpose replacement or stock end mill for machine tools accepting a 3/8-inch shank diameter, including manual knee mills, CNC vertical machining centers, and toolroom mills.

Installation Notes

Installation is performed by qualified machinists or toolroom personnel. Secure the shank in a collet or end mill holder rated for the 3/8-inch shank diameter and verify runout before cutting. This tool is not centercutting and should not be used for direct plunge entry into solid material. Power down and lock out the spindle before changing tooling in accordance with applicable shop safety procedures.