Accupro 39557 Square End Mill 3/4 in 2 Flute Tialn Powdered Metal

Product Description

The ACCUPRO 39557 is a square-end, single-end mill designed for precision milling of ferrous and non-ferrous materials in CNC and manual machining applications. Built from powdered metal with a TiAlN (titanium aluminum nitride) finish, this end mill offers elevated heat resistance and tool life compared to standard high-speed steel. It features a 0.750 inch cutting diameter, a 1.3125 inch length of cut, and a 3.5625 inch overall length. The centercutting design allows for direct plunge entry into workpiece material. Machinists, tool-and-die makers, and CNC operators working in job shop, production, and maintenance environments are the primary users.

This end mill is suited for slotting, profiling, and pocket milling operations on a variety of materials including alloy steel, stainless steel, cast iron, and hardened materials where TiAlN coatings provide thermal protection. The 30-degree right-hand spiral flute geometry promotes efficient chip evacuation during climb and conventional milling passes. It is appropriate for use in vertical machining centers, knee mills, and similar toolroom equipment requiring a 0.750 inch straight shank tool.

Key Features

• TiAlN finish provides high heat resistance and extended tool life in ferrous machining
• Centercutting geometry allows direct plunge milling without a pre-drilled pilot hole
• 30-degree right-hand helix spiral flute promotes smooth chip flow and reduced chatter
• Powdered metal construction delivers consistent hardness and fine grain structure throughout the tool body
• Right-hand cut, right-hand flute configuration compatible with standard spindle rotation
• 0.750 inch shank diameter fits standard ER and end mill holders for common CNC and manual setups

Compatibility

Designed as an OEM-style replacement or direct-fit tooling option for machining operations requiring a 0.750 inch diameter, 2-flute square end mill with a 0.750 inch straight shank.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator familiar with tool holding systems and safe machine practices. Ensure the machine spindle is fully stopped and locked out before inserting or removing the tool from the holder. Secure the shank to the specified torque range indicated by the tool holder manufacturer using appropriate set screws or collet nuts. Verify runout with a dial indicator after seating to confirm proper alignment before beginning a cut.