Hertel E1051008 Square End Mill 0.125in 4 Flute Hss

Product Description

The HERTEL E1051008 is a double-end square end mill manufactured from M7 high speed steel. It carries a 0.125 inch cutting diameter, a 0.375 inch length of cut, and a 0.375 inch shank diameter, with an overall length of 3.0625 inches. The four-flute, spiral-flute geometry with a 30-degree helix angle promotes chip evacuation and surface finish in a wide range of metalworking operations. Right-hand cut and right-hand flute orientation make this a standard configuration for conventional milling setups. The uncoated M7 HSS construction offers toughness and regrindability in general-purpose shop environments. This tool is installed and used by machinists and tool-and-die professionals on manual mills and CNC machining centers.

This end mill is suited for slotting, profiling, and peripheral milling in ferrous and non-ferrous materials where a small-diameter, short-length-of-cut tool is required. The double-end design extends usable tool life, making it a practical choice for production and job-shop environments running moderate volumes of small-feature work. The 0.375 inch shank fits standard collets and end mill holders used across vertical milling machines and compact machining centers.

Key Features

• Double-end design doubles usable tool life compared to single-end equivalents
• M7 high speed steel construction provides toughness and resistance to chipping
• 30-degree helix spiral flute promotes smooth chip flow and consistent surface finish
• Right-hand cut, right-hand flute — standard orientation for conventional milling setups
• Uncoated finish allows easy inspection of tool wear and supports regrinding
• Non-centercutting geometry — not designed for plunge entry cuts

Compatibility

Designed for use in standard 0.375 inch collets and end mill holders on vertical milling machines and CNC machining centers. Suitable for general-purpose milling of ferrous and non-ferrous metals within the 0.300 to 0.500 inch length-of-cut range.

Installation Notes

This tool is installed by machinists using standard collet chucks or end mill holders rated for the 0.375 inch shank diameter. Verify that the holder is clean and undamaged before seating the tool and torquing the drawbar or set screw to the holder manufacturer specification. Because this is a non-centercutting end mill, do not use it for direct plunge entry into solid material — ramp or helical entry is required. Confirm spindle direction is set to right-hand rotation before engaging the cut.