Hertel 750281 Square End Mill 1 in 4 Flute Solid Carbide Altin

Product Description

The HERTEL 750281 is a solid carbide square end mill designed for high-performance milling in ferrous and non-ferrous materials. With a 1 inch cutting diameter and a 1-1/2 inch length of cut, it delivers aggressive material removal in a compact envelope. The AlTiN (aluminum titanium nitride) coating improves heat resistance and extends tool life in dry or semi-dry machining conditions. A 30-degree helix angle and spiral flute geometry promote smooth chip evacuation and reduce cutting forces. This is a single-end, centercutting tool, meaning it can plunge directly into a workpiece. Machinists and tool-and-die professionals reach for this geometry in production environments where carbide rigidity and coating performance matter.

This end mill is suited for milling operations on CNC machining centers and manual mills where a 1 inch shank diameter is required. The regular-length profile with a 4 inch overall length fits standard ER and side-lock toolholders. Right-hand cut and right-hand flute orientation make it compatible with conventional spindle-forward setups. Typical applications include shoulder milling, slotting, and profiling in steel, stainless steel, cast iron, and hardened alloys. The micrograin carbide substrate supports higher surface footage and withstands the thermal demands of modern high-speed machining strategies.

Key Features

• Solid micrograin carbide substrate for rigidity and wear resistance
• AlTiN coating for elevated heat resistance in dry and semi-dry cuts
• 30-degree helix spiral flute for efficient chip evacuation
• Centercutting design allows direct plunge entry into workpiece
• Right-hand cut and right-hand flute for standard CNC spindle compatibility
• 4-flute configuration balances feed rate capability with chip clearance

Compatibility

Designed as an OEM-style replacement and direct-fit tool for CNC machining centers and manual mills requiring a 1 inch shank diameter end mill with standard ER collet or side-lock toolholder interfaces.

Installation Notes

Installation and tool changes must be performed with the machine spindle fully stopped and locked out per OSHA and shop safety protocols. Ensure the toolholder bore and shank are clean and free of chips or burrs before seating the tool. Verify runout with a dial indicator after clamping to confirm concentricity within acceptable tolerance for the intended operation. Consult the machine manufacturer and cutting tool documentation for appropriate speeds, feeds, and depth-of-cut parameters before engaging the workpiece.