Hertel EF053008 Square End Mill 1/8 in 4 Flute Hss Ticn

Product Description

The HERTEL EF053008 is a double-end square end mill designed for precision milling operations in metal and alloy workpieces. Built from high speed steel (HSS) with a titanium carbonitride (TiCN) coating, this tool delivers improved wear resistance and surface hardness compared to uncoated HSS. It features a 1/8 inch diameter cutting end, a 3/8 inch length of cut, and four flutes arranged in a right-hand spiral at a 30-degree helix angle. The double-end configuration provides two usable cutting ends, extending tool life between changeovers. Machinists and tool-and-die professionals use this end mill in manual mills, CNC mills, and drill presses for slotting, profiling, and contouring operations.

This end mill is suited for light to medium milling work in ferrous and non-ferrous metals, plastics, and similar machinable materials. The 1/8 inch diameter makes it appropriate for fine-detail work, narrow slots, and small-part machining. The 3/8 inch shank diameter allows secure tool holding in standard collets and end mill holders. With an overall length of 3-1/16 inches, it fits within the reach envelope of most benchtop and knee mill setups. Center-cutting capability allows plunge entry without a pre-drilled pilot hole, adding flexibility to the machining workflow.

Key Features

• TiCN coating increases surface hardness and extends tool life compared to bare HSS
• Double-end design provides two cutting ends per tool
• Center-cutting geometry allows direct plunge entry into workpiece material
• 30-degree right-hand helix promotes efficient chip evacuation during cuts
• Four-flute configuration supports smoother finish passes and increased feed rates
• 3/8 inch shank diameter compatible with standard collet and end mill holder systems

Compatibility

Designed for use in standard end mill holders and collet chucks accepting a 3/8 inch shank diameter, including ER-style and straight-bore collet systems commonly found on manual and CNC vertical milling machines.

Installation Notes

Installation and tool changes must be performed by a qualified machinist with the machine powered down and fully stopped. Ensure the spindle is locked and the collet or tool holder is properly torqued before beginning any operation. Inspect the cutting edges and coating for chips or wear before each use. Follow shop safety protocols and machine manufacturer guidelines for maximum RPM and feed rate settings appropriate to this tool diameter.