Titan Usa TC21827 Square End Mill 1/4 in 4 Flute Carbide

Product Description

The TITAN USA TC21827 is a solid carbide square end mill designed for precision milling in demanding machining environments. Built with a 0.25-inch (1/4 inch) diameter and a 0.75-inch length of cut, this single-end mill delivers clean, accurate material removal in steel, stainless, cast iron, and high-temperature alloys. The 38-degree helix angle promotes efficient chip evacuation and reduces chatter at high feed rates. An AlCrO-MAX coating provides elevated heat resistance and extended tool life under aggressive cutting conditions. Machinists and CNC operators working in job shops, tool rooms, and production environments will find this end mill suited to both roughing and finishing passes.

This end mill is configured for right-hand cutting with right-hand flute direction and a variable index flute geometry that helps suppress harmonic vibration during deep passes. The 0.25-inch shank diameter fits standard 1/4-inch collets and end mill holders. With a 2.5-inch overall length and no extended reach, it is intended for close-coupled setups where rigidity is essential. The micrograin carbide substrate supports sharp edge retention at elevated spindle speeds. Centercutting geometry allows direct plunge entry without a pre-drilled pilot hole.

Key Features

• 0.25-inch cutting diameter with 0.75-inch length of cut for controlled depth engagement
• AlCrO-MAX coating for high-heat resistance and extended tool life
• 38-degree helix angle promotes efficient chip evacuation and reduces vibration
• Variable index flute geometry minimizes harmonic chatter
• Centercutting capable — supports direct plunge milling
• Micrograin solid carbide substrate for sharp, durable cutting edges

Compatibility

Designed as a direct-fit replacement for standard 1/4-inch shank end mill holders and collet chucks used in CNC machining centers and manual milling machines requiring a 4-flute square end mill.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Ensure the spindle is fully stopped and the machine is in an e-stop or lockout state before changing tooling. Torque the collet nut or set screw to the tool holder manufacturer's specification using the appropriate spanner wrench or hex key. Confirm tool runout with a dial indicator before beginning a production cut.