Hertel E4050012 Square End Mill 3/16 in 2 Flute Cobalt

Product Description

The HERTEL E4050012 is a cobalt double-end square end mill designed for metal cutting operations in machining environments. Built from M42 cobalt high-speed steel, it delivers heat resistance and edge retention that standard HSS tooling cannot match. The 3/16 inch cutting diameter pairs with a 7/16 inch length of cut, a 30-degree spiral helix, and a TiN (titanium nitride) finish that reduces friction and extends tool life. The double-end configuration provides two usable cutting ends, offering additional value per tool. This end mill is installed and operated by machinists and tool-and-die professionals on manual mills and CNC machining centers.

This end mill is suited for slotting, profiling, and side milling in ferrous and non-ferrous materials where a small-diameter, center-cutting tool is required. The 3/8 inch shank diameter fits standard collets and end mill holders common to both manual knee mills and CNC vertical machining centers. The right-hand cut and right-hand flute spiral are standard configurations for general-purpose machining. The regular-length geometry keeps the tool stable in short-reach applications where rigidity is a priority.

Key Features

• M42 cobalt construction for superior heat and wear resistance versus standard HSS
• TiN finish reduces friction and extends cutting edge life
• Double-end design provides two cutting ends per tool
• 30-degree helix angle promotes smooth chip evacuation in spiral flute configuration
• Center-cutting geometry allows direct plunge entry into workpiece material
• Right-hand cut and right-hand flute — standard orientation for general-purpose milling

Compatibility

Designed as an OEM-style replacement or standard tooling selection for manual and CNC milling machines accepting a 3/8 inch shank diameter end mill holder or collet.

Installation Notes

Installation is performed by a qualified machinist. Secure the shank fully in a clean, properly sized collet or end mill holder and torque the retention mechanism per the machine tool manufacturer's specifications. Inspect the cutting edges and TiN coating for damage before each use — do not run a chipped or worn end mill. Confirm spindle direction matches the right-hand cut orientation of this tool before engaging the workpiece.