Hertel E103101401 Square End Mill 7/32 in 4 Flute Hss

Product Description

The HERTEL E103101401 is a 4-flute square end mill manufactured from M7 high speed steel, designed for milling operations in ferrous and non-ferrous materials on manual mills and CNC machining centers. The tool measures 0.2188 inches in cutting diameter with a 0.6250-inch length of cut, a 0.3750-inch shank diameter, and a 2-7/16-inch overall length. The 30-degree helix angle and spiral flute geometry promote chip evacuation during side milling, slotting, and profiling cuts. This end mill is uncoated and single-end, suited for general-purpose stock removal in shop and production environments. Machinists and tool-and-die technicians are the primary users of this tool.

This end mill is intended for use in general machining applications where a standard square-end profile is required. The 3/8-inch shank diameter fits common ER and straight-shank collet systems found on knee mills, vertical machining centers, and CNC routers. The 4-flute configuration provides a balance between chip clearance and surface finish, making it appropriate for finishing passes and moderate-depth slotting in steel, cast iron, and aluminum. The uncoated M7 HSS construction is well-suited for low- to moderate-speed cutting conditions where regrinding is a consideration.

Key Features

• M7 high speed steel construction for durability and regrindability
• 0.2188-inch (7/32 inch) cutting diameter with 0.6250-inch length of cut
• 4 spiral flutes with 30-degree helix angle for efficient chip evacuation
• Right-hand cut, right-hand flute configuration
• 3/8-inch shank diameter compatible with standard collet systems
• Uncoated, single-end design suited for general-purpose milling

Compatibility

Designed as a general-purpose replacement or production end mill for use in standard 3/8-inch collet or straight-shank toolholders on manual and CNC milling machines.

Installation Notes

Installation and use of this end mill should be performed by a qualified machinist familiar with speeds, feeds, and depth-of-cut parameters for HSS tooling. Ensure the spindle is fully stopped and the machine is locked out before inserting or removing the tool from the collet or toolholder. Verify collet runout and tool projection before beginning a cut, as excessive overhang reduces rigidity and shortens tool life. Do not exceed the rated cutting diameter depth of cut without adjusting feed rate accordingly.