Eagle Cutting Tool TDD50-4012S-ALT-D 4-flute Altin End Mill

Product Description

The EAGLE CUTTING TOOL TDD50-4012S-ALT-D is a 3/16 inch diameter, 4-flute single end center cutting end mill with an AlTiN (aluminum titanium nitride) coating and a 3/16 inch shank. Manufactured in the USA, this solid carbide end mill is designed for high-performance milling operations where heat resistance, tool life, and surface finish quality are priorities. The AlTiN coating extends cutting life in ferrous and hard materials by reducing friction and improving thermal stability at the cutting edge. It is a standard single-end geometry suited for profiling, slotting, and contouring operations on CNC and manual milling machines.

This end mill is suited for use in machine shops, tool rooms, and production environments handling ferrous metals, stainless steels, cast iron, and hardened materials. The 4-flute configuration supports smoother finishes and faster feed rates compared to 2-flute designs, making it a practical choice for finishing passes and side milling. It is typically installed and used by machinists, CNC operators, and toolmakers working in aerospace, automotive, medical, and general precision machining applications.

Key Features

• 3/16 inch cutting diameter with matching 3/16 inch shank for direct collet or end mill holder fitment
• 4-flute geometry for improved surface finish and higher feed rate capability
• AlTiN coating provides elevated heat and oxidation resistance for extended tool life in hard materials
• Center cutting design allows plunge milling in addition to peripheral and slot milling
• Solid carbide construction delivers rigidity and dimensional stability under aggressive cutting conditions
• Made in the USA to consistent manufacturing tolerances

Compatibility

Designed as a standard single-end carbide end mill for use in ER collet chucks, end mill holders, and similar toolholding systems accepting a 3/16 inch straight shank on CNC machining centers and manual knee mills.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and the machine is locked out before changing tooling. Seat the shank to the full recommended insertion depth in the collet or holder and torque the retention nut per the toolholder manufacturer specification. Inspect the cutting edges for chips or damage before each use and verify runout with a dial indicator when tight tolerances are required.

Technical Specifications

• Cutting Diameter: 3/16 inches
• Shank Diameter: 3/16 inches
• Number of Flutes: 4
• Coating: AlTiN (Aluminum Titanium Nitride)
• End Type: Single End, Center Cutting
• Construction: Solid Carbide
• Country of Origin: USA
• Weight: 1.42 pounds

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: TDD50-4012S-ALT-D