Accupro 312060 Corner Radius End Mill 3/16 in 5 Flute Carbide

Product Description

The ACCUPRO 312060 is a solid carbide corner radius end mill designed for precision milling in ferrous and hardened materials. Built on the HS Series platform, it features a 3/16 inch diameter with a 0.030 inch corner radius and an AlCrTiN coating that resists heat and wear at elevated cutting speeds. With 5 flutes, a variable index, and a 38-degree helix angle, this end mill delivers smooth chip evacuation and reduced chatter. It is centercutting, allowing direct plunge entry, and the extended reach design with a 1/2 inch reach length makes it suitable for deep-cavity and shoulder milling applications. Right-hand cut and right-hand flute direction are standard configuration.

This end mill is suited for use in CNC machining centers handling precision work in tool steel, stainless, and high-temp alloys. The extended reach neck geometry and reduced 0.178 inch neck diameter allow access to tight pockets and stepped features where standard end mills cannot reach. It is a single-end tool intended for production and prototype machining environments where consistent corner geometry and surface finish are required. Machinists and CNC programmers working in aerospace, die-and-mold, and medical component shops will find this geometry particularly applicable.

Key Features

• AlCrTiN coating provides thermal resistance and extended tool life in hard materials
• 5-flute variable index design reduces harmonic chatter and improves finish quality
• Extended reach with 0.500 inch reach length and reduced 0.178 inch neck diameter for deep-pocket access
• Centercutting geometry allows direct plunge milling without pre-drilling
• Micrograin solid carbide substrate offers rigidity and edge retention
• 0.030 inch corner radius reduces stress concentration and extends corner life

Compatibility

Designed as an OEM-style solid carbide corner radius end mill for use in standard 3/16 inch collet or end mill holders on CNC machining centers requiring extended-reach tooling.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Secure the shank in a properly sized collet or end mill holder, ensuring full shank engagement to minimize runout. Verify spindle and tool holder are clean and free of debris before seating. Follow machine tool manufacturer guidelines for maximum RPM and feed rate recommendations when using extended-reach tooling.