Accupro 14797544 Corner Radius End Mill 0.03in 4 Flute

Product Description

The ACCUPRO 14797544 is a miniature solid carbide corner radius end mill designed for high-precision milling of hardened and abrasive materials. It measures 0.03 inches in diameter with a 0.005 inch corner radius and a 0.09 inch length of cut, making it suited for fine detail work and tight-tolerance finishing passes. The AlTiN coating provides heat resistance and extended tool life in ferrous and hardened steel applications. With 4 flutes and a right-hand spiral flute direction, this end mill delivers efficient chip evacuation in confined cutting envelopes. It is a single-end, centercutting design, allowing plunge entry and contour milling in a single tool.

This end mill is used in CNC milling applications requiring very small cutter diameters, such as micro-mold work, die and tool finishing, engraving, and tight-radius slot milling. It mounts into a 1/8 inch shank collet and fits standard ER and precision collet systems used in vertical machining centers and high-speed spindles. The miniature series designation indicates it is built for fine detail operations where standard-size end mills cannot reach or fit. Machinists and toolmakers running high-speed finishing programs in mold shops, job shops, and precision component manufacturing will find this a direct-fit tool.

Key Features

• 0.005 inch corner radius reduces stress concentration and improves corner finish quality
• AlTiN coating for heat resistance and extended tool life in ferrous and hardened materials
• 4 flutes with right-hand spiral geometry for smooth chip flow in miniature cuts
• Centercutting design allows plunge milling without a pre-drilled entry point
• Micrograin carbide substrate for rigidity and edge retention at small diameters
• Single-end construction with 1.5 inch overall length for stable reach in CNC holders

Compatibility

Designed for use in CNC machining centers and high-speed milling spindles accepting a 1/8 inch shank diameter via ER collets or precision collet chucks. Fits applications in the miniature end mill series where 0.03 inch cutting diameter tooling is required.

Installation Notes

Installation is performed by qualified machinists or CNC toolroom technicians. Ensure the machine spindle is fully stopped and the tool changer is in a safe state before loading or changing tooling. Use a calibrated torque wrench and the collet manufacturer's specified procedure when tightening ER collet nuts to avoid runout or tool pullout. At 0.03 inches in diameter, this tool is highly sensitive to runout and side loads — verify collet condition and holder cleanliness before every setup.