Accupro 15023902 Square End Mill 0.045 in 3 Flute Altin

Product Description

The ACCUPRO 15023902 is a solid carbide square end mill designed for precision milling operations in ferrous and hard materials. With a 0.045-inch cutting diameter and a 0.067-inch length of cut, this tool is built for tight-tolerance work in confined geometries. The AlTiN coating provides heat resistance and extended tool life when cutting hardened steels, stainless, and high-temp alloys. Three right-hand spiral flutes with a 30-degree helix angle promote efficient chip evacuation while maintaining a smooth finish. The micrograin carbide substrate adds toughness and wear resistance. This end mill is single-end, center-cutting, and configured for right-hand cutting direction.

This end mill is suited for CNC milling applications requiring small-diameter tooling, including slot milling, profiling, and finishing passes in die and mold work, aerospace components, and precision machined parts. The 0.125-inch shank diameter fits standard collets and end mill holders common in vertical machining centers and CNC mills. The extended reach configuration, with a 0.68-inch reach length and 2.5-inch overall length, allows access to deeper features without tool interference.

Key Features

• 0.045-inch cutting diameter with a mill diameter tolerance of +0.0000 / -0.0010 inches for precise fitment
• AlTiN coating for elevated heat resistance and extended tool life in hard and abrasive materials
• 3 right-hand spiral flutes at a 30-degree helix angle for efficient chip evacuation
• Micrograin solid carbide substrate for improved toughness and edge retention
• Center-cutting design allows plunge entry and versatile toolpath options
• Extended reach with 0.68-inch reach length accommodates deeper milling features

Compatibility

Designed as a direct-fit replacement or stock tooling option for CNC milling operations using standard 0.125-inch (1/8-inch) collets or end mill holders.

Installation Notes

Installation is performed by qualified CNC machinists or toolroom personnel. Ensure the machine spindle is fully stopped and locked out before inserting or changing tooling. Verify collet size matches the 0.125-inch shank diameter and that runout is within acceptable tolerance before beginning any cut. Follow the machine tool manufacturer and applicable shop safety guidelines when setting feeds, speeds, and depth of cut.