Hertel E8053016 Square End Mill 1/4 in 4 Flute Hss Tin

Product Description

The HERTEL E8053016 is a double-end square end mill designed for general-purpose milling operations in metal, alloy, and ferrous materials. Manufactured from M7 high speed steel and finished with a titanium nitride (TiN) coating, it delivers extended tool life and reduced friction at the cutting edge. The four-flute spiral design with a 30-degree helix angle promotes efficient chip evacuation and smooth surface finishes. The centercutting geometry allows direct plunge entry without pre-drilled pilot holes. Licensed machinists and CNC operators install this tool in vertical milling machines, knee mills, and machining centers across production and job-shop environments.

This end mill is suited for face milling, slotting, profiling, and contour operations on steel, cast iron, and similar ferrous workpiece materials. The 0.25-inch cutting diameter and 0.625-inch length of cut make it appropriate for light-to-medium stock removal in close-tolerance features. The double-end configuration doubles usable tool life before discard. The 0.375-inch shank diameter fits standard ER and R8 collet systems common in manual and CNC milling setups.

Key Features

• M7 high speed steel construction for toughness in interrupted cuts and ferrous materials
• TiN coating reduces friction and improves wear resistance at the cutting edge
• 30-degree helix spiral flute promotes controlled chip flow and smooth surface finish
• Centercutting geometry allows direct plunge milling without a pilot hole
• Double-end design provides two usable cutting ends per tool
• Right-hand cut and right-hand flute configuration for standard milling spindle rotation

Compatibility

Designed as an OEM-style replacement or standard tooling selection for milling machines accepting a 0.375-inch shank diameter in ER, R8, or equivalent collet systems.

Installation Notes

Installation is performed by a qualified machinist or CNC operator. Disengage spindle power and confirm the machine is in a locked-out, zero-energy state before changing tooling. Seat the shank fully into the collet and torque the collet nut to the collet manufacturer specification. Verify runout with a dial indicator before beginning the cut, and confirm spindle speed and feed rate are appropriate for the workpiece material and depth of cut.