Titan Usa TE81376 Square End Mill 1.375 in 6 Flute Cobalt

Product Description

The TITAN USA TE81376 is a 6-flute cobalt square end mill designed for high-performance milling in ferrous and difficult-to-machine materials. Built from M42 cobalt high-speed steel, it carries an AlTiN coating that extends tool life at elevated cutting temperatures. The cutter measures 1.375 inches in diameter with a 2-inch length of cut, a 0.75-inch Weldon Flat shank, and a 4.25-inch overall length. The 30-degree helix angle promotes smooth chip evacuation, and the centercutting geometry allows for plunge entry. This tool is suited for machinists and toolroom operators working in job shop, production, or maintenance environments.

The TE81376 is applied in milling operations involving alloy steels, stainless steel, and high-temperature alloys where carbide tooling is cost-prohibitive or where toughness is prioritized over outright hardness. The Weldon Flat shank provides positive engagement in standard end mill holders and set-screw-style toolholders, reducing pullout risk during heavy cuts. The 6-flute configuration increases the number of cutting edges in contact at any time, which raises feed rates and improves surface finish on finish-pass applications. Right-hand cut with right-hand upcut flutes directs chips up and away from the workpiece.

Key Features

• M42 cobalt construction for toughness and heat resistance in tough alloys
• AlTiN coating extends tool life under high cutting temperatures
• 6 flutes with 30-degree helix for improved feed rates and surface finish
• Centercutting design enables direct plunge milling
• Weldon Flat shank reduces pullout in set-screw toolholders
• Right-hand cut, right-hand upcut flute direction for effective chip clearance

Compatibility

Designed for use in standard end mill holders and Weldon-style set-screw toolholders accepting a 0.75-inch shank diameter. Suitable for CNC machining centers and manual knee mills with appropriate spindle speeds and feed rates for cobalt tooling.

Installation Notes

Installation is performed by a machinist or toolroom operator. Secure the Weldon Flat shank in a properly sized end mill holder and torque the set screw against the flat per the toolholder manufacturer specification. Verify runout with a dial indicator before commencing cuts. Do not exceed the tool manufacturer recommended speeds and feeds for M42 cobalt in the workpiece material being machined.