Accupro 12182947 Corner Radius End Mill 1/2 in 4 Flute

Product Description

The ACCUPRO 12182947 is a solid carbide corner radius end mill designed for precision milling operations in ferrous and non-ferrous materials. Built from micrograin solid carbide, this single-end tool features a 0.01-inch corner radius that reduces stress concentration at the cutting edge and extends tool life in high-feed applications. The AlTiN coating adds thermal resistance and hardness, making this end mill well suited for dry or semi-dry cutting at elevated temperatures. With 4 flutes and a right-hand spiral flute direction, it delivers efficient chip evacuation and consistent surface finishes in production environments.

This end mill is used in CNC machining centers for profiling, contouring, slotting, and pocket milling. The stub-length configuration keeps deflection low during aggressive cuts. It is a centercutting tool, allowing plunge entry without a pre-drilled hole. Machinists and tooling professionals in job shops, production shops, and manufacturing facilities will find it appropriate for finishing and semi-finishing passes where corner integrity and dimensional accuracy are priorities.

Key Features

• Micrograin solid carbide construction for rigidity and wear resistance
• AlTiN coating for high-temperature performance and extended tool life
• 0.01-inch corner radius reduces edge chipping and stress at corners
• 4-flute, right-hand spiral design promotes efficient chip removal
• Centercutting capability allows direct plunge milling
• Stub-length geometry minimizes deflection in tight-tolerance applications

Compatibility

Designed as an OEM-style replacement or direct-use tooling for CNC machining centers and manual mills accepting a 1/2-inch straight shank end mill holder or collet chuck.

Installation Notes

Install in a 1/2-inch collet chuck or end mill holder, ensuring the shank is fully seated and clamped to the manufacturer-specified torque for the toolholder in use. Verify runout with a dial indicator before beginning cuts, as excessive runout accelerates wear on carbide tooling. Power down the spindle completely before changing tooling. Follow the machine tool manufacturer guidelines and applicable shop safety procedures for speeds and feeds appropriate to this diameter and coating.