Hertel E2042032 Square End Mill 1/2 in 6 Flute Cobalt

Product Description

The HERTEL E2042032 is a 6-flute cobalt square end mill engineered for demanding milling operations in ferrous and hard materials. Built from M42 cobalt high-speed steel, this tool delivers heat resistance and edge retention where standard HSS tooling falls short. The 30-degree right-hand spiral helix promotes efficient chip evacuation across the 1.25-inch length of cut. With a bright, uncoated finish and centercutting capability, it handles both plunge and peripheral cutting in a single setup. Machinists and tool-and-die professionals specify this end mill for slotting, profiling, and side milling on manual and CNC machine tools.

This end mill is suited for ferrous metal machining including steel alloys, stainless, and cast iron where cobalt-grade tooling is the standard choice. The regular-length geometry and 0.5-inch shank diameter fit a wide range of collet chucks, end mill holders, and Weldon-style tool holders common in job shops and production environments. The 3.25-inch overall length provides adequate reach for most standard workholding setups without sacrificing rigidity.

Key Features

• M42 cobalt construction for superior heat resistance and edge retention in hard materials
• 6-flute geometry provides a higher feed rate and improved surface finish compared to 4-flute designs
• 30-degree right-hand helix promotes positive chip flow and reduces cutting pressure
• Centercutting design allows direct plunge entry without a pre-drilled pilot hole
• Bright/uncoated finish suits applications where coating adhesion or coolant compatibility is a concern
• Right-hand cutting direction compatible with conventional CNC and manual milling machine spindles

Compatibility

Designed as an OEM-style replacement or direct specification end mill for machine tool setups requiring a 1/2-inch shank, 6-flute, cobalt square end mill with a regular-length 1-1/4-inch length of cut.

Installation Notes

Installation is performed by a machinist or toolroom technician using an appropriate end mill holder, collet chuck, or Weldon-style holder rated for the 0.5-inch shank diameter. Ensure the machine spindle is fully stopped and locked out before loading or removing the tool. Inspect the tool shank and holder bore for chips or damage before securing. Follow machine tool manufacturer runout and torque specifications for the holder type in use.