Hertel 750343 3/4 in Square End Mill 3 Flute Solid Carbide

Product Description

The HERTEL 750343 is a solid carbide square end mill designed for precision milling operations in metal fabrication and machining environments. It features a 3/4-inch cutting diameter, a 1-1/2-inch length of cut, and a 4-inch overall length with a matching 3/4-inch shank diameter. The tool is manufactured from micrograin solid carbide and coated with an AlTiN finish, which improves heat resistance and extends tool life in ferrous and high-temperature alloy applications. With three flutes and a 30-degree helix angle, this end mill balances chip evacuation with cutting edge strength, making it well suited for slotting, profiling, and peripheral milling cuts.

This end mill is appropriate for use in CNC machining centers and manual knee mills operating in job shops, tool rooms, and production environments. The centercutting geometry allows plunge milling in addition to standard peripheral and slot cutting. Right-hand cut and right-hand flute direction are standard for conventional spindle setups. The AlTiN coating makes this tool a practical choice for dry or near-dry machining of steel, stainless, and cast iron where heat buildup is a concern.

Key Features

• Solid micrograin carbide construction for rigidity and wear resistance
• AlTiN coating for elevated heat resistance in ferrous and alloy machining
• 3-flute design balances chip clearance and cutting edge support
• 30-degree helix angle promotes smooth cutting action and reduced chatter
• Centercutting geometry enables plunge entry without a pre-drilled hole
• Right-hand cut and right-hand flute direction for standard spindle compatibility

Compatibility

Designed as an OEM-style replacement or direct-fit tooling option for standard ER and straight-shank collet chucks, milling chucks, and end mill holders accepting a 3/4-inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist familiar with cutting tool setup and machine tool operation. Ensure the machine spindle is fully stopped and locked before inserting or removing the end mill from the tool holder. Verify that the shank is fully seated and the set screw or collet nut is torqued per the tool holder manufacturer specifications. Inspect the cutting edges for chipping or wear before each use and confirm proper runout with a dial indicator before production cuts.