Hertel E1051056 Square End Mill 7/8 in 4 Flute Hss

Product Description

The HERTEL E1051056 is a 4-flute square end mill designed for general-purpose milling operations in machine shops and production environments. It is manufactured from M7 high speed steel with a bright, uncoated finish and features a 30-degree right-hand spiral helix. The mill diameter is 0.875 inches (7/8 inches), the length of cut is 1.875 inches (1-7/8 inches), and the overall length is 6.125 inches (6-1/8 inches). The shank diameter matches the mill diameter at 0.875 inches (7/8 inches). This tool is installed and operated by machinists, toolroom technicians, and CNC operators on vertical and horizontal milling machines and machining centers.

This end mill is suited for slotting, profiling, and peripheral milling in ferrous and non-ferrous materials where an uncoated high speed steel tool is appropriate. The regular length classification and 30-degree helix provide a balance of rigidity and chip evacuation for standard-depth cuts. The right-hand cutting and flute direction are consistent with conventional milling setups. The length of cut range for this size class runs from 1.5 inches to 2.0 inches, placing this tool within the standard envelope for 7/8-inch end mills.

Key Features

• M7 high speed steel construction for durability in general milling applications
• 4-flute spiral configuration with 30-degree right-hand helix for efficient chip flow
• Bright, uncoated finish suitable for use with standard cutting fluids
• Mill diameter and shank diameter both 0.875 inches for direct collet or end mill holder mounting
• Right-hand cutting direction compatible with conventional milling machine spindle rotation
• Regular length classification for rigidity in standard-depth slotting and profiling

Compatibility

Designed as a standard 7/8-inch shank square end mill for use in collet chucks, end mill holders, and Weldon-style holders configured for 7/8-inch shank tooling on vertical mills, knee mills, and CNC machining centers.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and the machine is powered down or placed in an e-stop state before changing tooling. Seat the shank fully in the holder to the recommended engagement depth and torque set screws or collet nuts per the toolholder manufacturer specifications. Verify runout with a dial indicator before initiating a cut, and confirm that cutting speed and feed rate are appropriate for the workpiece material and this tool diameter.