Hertel E199921293 Square End Mill 33/64 in 2 Flute Hss

Product Description

The HERTEL E199921293 is a square end mill designed for general-purpose milling operations in ferrous and non-ferrous materials. Built from high speed steel, it features a 33/64 inch (0.5156 inch) cutting diameter, a 30-degree helix angle, and a two-flute spiral configuration. The bright, uncoated finish suits applications where a coating is not required or where regrinding is anticipated. With a 1/2 inch shank diameter and a 3-3/8 inch overall length, the tool mounts in standard collet and end mill holders. Centercutting geometry allows plunge entry, giving machinists added versatility in slotting and ramping operations.

This end mill is suited for manual mills, CNC machining centers, and knee mills used in job shops, maintenance, and light production environments. The 1-1/8 inch length of cut (LOC) handles moderate-depth slotting, profiling, and peripheral milling passes. Right-hand cut and right-hand flute direction match conventional milling setups. The two-flute design provides increased chip clearance compared to higher-flute-count tools, making it a practical choice when cutting softer steels, aluminum, or plastics where chip evacuation is a priority.

Key Features

• 33/64 inch (0.5156 inch) cutting diameter with 1-1/8 inch length of cut
• High speed steel construction for durability across a range of workpiece materials
• Two-flute spiral design promotes chip clearance in slotting and full-width cuts
• 30-degree helix angle balances cutting efficiency with tool stability
• Centercutting geometry enables direct plunge entry without pre-drilling
• Bright, uncoated finish compatible with standard regrinding services

Compatibility

Designed as a standard square end mill for use in collet chucks, end mill holders, and milling chucks accepting a 1/2 inch shank diameter across conventional and CNC milling platforms.

Installation Notes

Installation and operation of this end mill should be performed by a qualified machinist or tooling technician. Ensure the spindle is fully stopped and the machine is powered down before inserting or removing the tool from its holder. Verify that the holder and collet are clean and within tolerance before clamping to the specified shank diameter. Follow the machine manufacturer and tooling guidelines for appropriate feed rates, speeds, and depth of cut for the workpiece material being machined.