Hertel 750400 Square End Mill 0.25 in 2 Flute Solid Carbide

Product Description

The HERTEL 750400 is a solid carbide square end mill designed for precision milling in metal cutting and machining applications. With a 0.25 inch cutting diameter and a 0.75 inch length of cut, this two-flute tool delivers clean square shoulders and flat bottom cuts. The micrograin carbide substrate provides hardness and wear resistance. An AlTiN coating adds thermal protection during high-speed cutting. The 30-degree helix angle promotes chip evacuation and reduces cutting forces. This end mill is installed and operated by machinists and CNC operators working in job shops, manufacturing facilities, and toolroom environments.

This end mill suits milling operations on ferrous and non-ferrous metals where a short-flute, small-diameter tool is appropriate. The centercutting geometry allows plunge entry directly into the workpiece. The right-hand cut configuration is standard for conventional CNC machining center setups. At 2.5 inches overall length and a 0.25 inch shank diameter, it fits standard ER collet chucks and end mill holders common to most vertical and horizontal milling machines. The single-end design means the tool is replaced when worn rather than reversed.

Key Features

• Solid micrograin carbide construction for rigidity and extended tool life
• AlTiN finish for elevated heat resistance during dry or semi-dry machining
• 30-degree helix angle promotes smooth chip flow and reduced cutting pressure
• Centercutting design enables direct plunge milling without a pre-drilled hole
• Right-hand cutting direction compatible with standard spindle rotation
• Two-flute geometry suited to slotting and peripheral milling in tighter pockets

Compatibility

Designed as a standard single-end square carbide end mill for use in CNC machining centers and manual mills with 0.25 inch collet or end mill holder tooling.

Installation Notes

Installation is performed by a machinist or CNC operator. The machine spindle must be fully stopped and the machine locked out before changing tooling. Seat the 0.25 inch shank fully into the collet or holder and torque the retention nut to the tool holder specification. Verify runout with a dial indicator before beginning the cut, as excessive runout accelerates wear on small-diameter carbide tools.