Hertel E8053056 Square End Mill 7/8 in 4 Flute Hss Tin

Product Description

The HERTEL E8053056 is a double-end square end mill designed for general-purpose milling in ferrous and non-ferrous metals. Built from M7 high speed steel with a TiN (titanium nitride) finish, it delivers extended tool life in moderate-speed cutting applications. The 4-flute, spiral design with a 30-degree helix angle provides good chip evacuation and surface finish. At 7/8 inch in diameter with a 1-7/8 inch length of cut and 6-1/8 inch overall length, this tool fits standard milling machines and CNC machining centers. The centercutting geometry allows direct plunge entry without a pre-drilled hole. Installed by machinists and tool-and-die professionals in job shop and production environments.

This end mill is suited for slotting, profiling, and pocketing operations on steel, cast iron, aluminum, and similar materials. The double-end configuration extends tool life and value by providing two usable cutting ends. The right-hand cut and right-hand flute orientation are standard for conventional and climb milling on vertical and horizontal knee mills or CNC machining centers. Regular length classification makes it appropriate for standard-reach applications where rigidity is a priority.

Key Features

• M7 high speed steel construction for toughness in interrupted cuts and general milling
• TiN finish increases surface hardness and reduces friction for longer tool life
• Double-end design provides two cutting ends per tool
• 4-flute, 30-degree spiral helix balances chip removal with surface finish quality
• Centercutting geometry allows direct plunge milling without pre-drilling
• Right-hand cut, right-hand flute — compatible with standard spindle rotation

Compatibility

Designed as an OEM-style replacement or standard tooling selection for 7/8 inch collet chucks, end mill holders, and milling arbors on vertical knee mills, bed mills, and CNC machining centers accepting a 7/8 inch shank diameter.

Installation Notes

Installation is performed by a qualified machinist or tooling technician. Ensure the machine spindle is fully stopped and locked out before inserting or removing the tool from the holder. Seat the shank fully into the collet or end mill holder and torque the retention fastener to the machine manufacturer specification. Confirm runout with a dial indicator before beginning the cut, as excessive runout accelerates wear and reduces surface finish quality.