Hertel E107204001 Square End Mill 5/8in 2 Flute Hss

Product Description

The HERTEL E107204001 is a two-flute, square-end, high speed steel end mill designed for general-purpose milling operations in ferrous and non-ferrous materials. Built to an extra-long length specification with a 4-inch length of cut and 6.125-inch overall length, this tool handles deep-pocket and extended-reach applications where standard-length end mills fall short. The 42-degree helix angle promotes efficient chip evacuation and smooth cutting action. The bright, uncoated finish suits applications where coating is unnecessary or where re-sharpening is anticipated. Machinists, tool-and-die shops, and job shops running manual or CNC vertical mills install this tool.

This end mill is suited for peripheral and slot milling in shop environments requiring extended reach. The 5/8-inch shank diameter pairs with standard ER, collet, or end mill holders common to knee mills and machining centers. The right-hand cut, right-hand spiral flute geometry is the standard configuration for conventional milling operations. Its center-cutting capability allows plunge entry, giving it flexibility across facing, slotting, and profiling operations without a separate drilling step.

Key Features

• 5/8 inch (0.625 inch) mill diameter with matching 5/8 inch shank for direct collet or end mill holder mounting
• 4-inch length of cut provides extended reach for deep cavities and tall workpiece features
• 42-degree helix angle promotes aggressive chip evacuation and reduced cutting forces
• Center-cutting design allows direct plunge entry without pre-drilling
• M7 high speed steel grade offers good toughness and wear resistance for general milling
• Bright/uncoated finish makes re-sharpening straightforward and suits a broad range of materials
• Right-hand cut, right-hand spiral flute configuration matches standard CNC and manual mill spindle rotation

Compatibility

Designed as an OEM-style replacement or direct-fit cutting tool for machining centers, knee mills, and CNC vertical mills accepting a 5/8 inch straight shank end mill holder or collet system.

Installation Notes

Installation of end mills should be performed by a qualified machinist following the machine tool manufacturer guidelines for tool holding and runout tolerances. Ensure the spindle is fully stopped and the machine is powered down before inserting or removing the tool. Use a calibrated torque wrench on collet nuts to avoid under- or over-tightening. Inspect the shank and holder bore for debris or damage before each use to maintain concentricity and tool life.