Hertel E1036024 Square End Mill 3/8 in 4 Flute Hss

Product Description

The HERTEL E1036024 is a 4-flute square end mill designed for general-purpose milling operations in metalworking and machining environments. Manufactured from M7 high speed steel, it delivers reliable performance in a wide range of ferrous and non-ferrous materials. The 3/8 inch cutting diameter pairs with a 2.5 inch length of cut, giving this tool an extra-long reach classification suited to deeper pocket and slot milling work. The 30-degree helix angle promotes smooth chip evacuation and reduces cutting forces during operation. It is an uncoated, single-end tool with a right-hand cut and right-hand spiral flute, intended for use by machinists and tool-and-die professionals in production and maintenance shop environments.

This end mill is well suited to slotting, profiling, and peripheral milling operations where extended reach into a workpiece is required. The extra-long length of cut — starting at 2.0 inches and extending to 2.5 inches — allows access to deep features that standard-length end mills cannot reach. The 3/8 inch shank diameter matches the cutting diameter, making it compatible with standard collet chucks and end mill holders of that bore size. It is not center-cutting, so plunge entry is not supported; ramping or pre-drilled entry points are required for full-depth pocket work.

Key Features

• 3/8 inch cutting diameter with a matching 3/8 inch shank for direct collet mounting
• 2.5 inch length of cut for extra-long reach into deep slots and pockets
• 4-flute spiral design with a 30-degree helix angle for smooth chip flow
• M7 high speed steel construction for toughness in interrupted and general-purpose cuts
• Right-hand cut, right-hand flute orientation — standard for conventional and climb milling
• Uncoated finish; suitable for re-coating or use as-ground
• Not center-cutting — requires ramp entry or pre-drilled start holes for plunge operations

Compatibility

Designed as an OEM-style replacement or direct-use cutting tool for standard 3/8 inch collet chucks, end mill holders, and milling machine spindles accepting a 3/8 inch shank diameter.

Installation Notes

Installation is performed by qualified machinists following standard tooling practices. Secure the shank fully within the collet or holder to the recommended engagement depth before tightening. Confirm spindle speed and feed rate are appropriate for the workpiece material and depth of cut before engaging the tool. Inspect the cutting edges for damage or runout before each use, especially given the extra-long overhang, which increases deflection risk at aggressive feed rates.