Hertel E5022020 Square End Mill 5/16 in 2 Flute Carbide

Product Description

The HERTEL E5022020 is a solid carbide square end mill designed for precision milling operations in ferrous and non-ferrous materials. With a 5/16 inch cutting diameter, a 1/2 inch length of cut, and a 2-flute spiral flute geometry, this tool delivers efficient chip evacuation and clean edge profiles in slotting, profiling, and plunge-milling applications. The 30-degree helix angle reduces cutting forces while maintaining surface finish quality. Centercutting capability allows direct plunge entry without pre-drilling. At 2-1/2 inches overall length and a 5/16 inch shank diameter, it fits standard collets and tool holders found in most CNC and manual milling setups.

This end mill is suited for general machining environments including job shops, tool and die operations, and maintenance machining. The double-end configuration extends usable tool life by providing two cutting ends per shank. Right-hand cut geometry with right-hand spiral flute is the standard orientation for conventional and climb milling on vertical mills and machining centers. The uncoated solid carbide construction is appropriate for applications where coolant is used and coating compatibility with the workpiece material is a consideration.

Key Features

• Solid carbide construction for rigidity and wear resistance in demanding cuts
• 2-flute spiral design promotes chip clearance in slotting and plunge operations
• 30-degree helix angle balances cutting efficiency with surface finish
• Centercutting geometry enables direct plunge entry without piloting
• Double-end design provides two usable cutting ends per tool
• Right-hand cut and right-hand spiral — standard orientation for most milling setups

Compatibility

Designed for use in standard 5/16 inch collets, ER collet chucks, and end mill holders on CNC machining centers, knee mills, and manual vertical mills. No specific compatible machine models were listed in the product data.

Installation Notes

Installation is performed by machinists or tooling technicians. Ensure the machine spindle is fully stopped and locked before changing tooling. Seat the shank fully into the collet or holder and tighten to the tool holder specification using the appropriate torque wrench and spanner. Verify runout with a dial indicator before beginning a production cut, and confirm correct spindle direction before engaging the workpiece.