Accupro 314590 Corner Radius End Mill 1/4 in Solid Carbide

Product Description

The ACCUPRO 314590 is a solid carbide corner radius end mill designed for precision milling operations requiring a blend of sharp cutting performance and edge protection. Built from micrograin solid carbide and coated with ZrN (zirconium nitride), this tool delivers extended tool life and resistance to heat buildup in demanding cutting environments. The 3-flute, right-hand spiral configuration paired with a 37-degree helix angle promotes efficient chip evacuation and smooth cutting action. The 0.020-inch corner radius reduces stress concentration at the cutting edge, minimizing chipping during side milling and profiling passes. Centercutting capability allows direct plunge entry into workpieces without pre-drilling.

This end mill is suited for use in CNC machining centers and manual milling machines across general metalworking, moldmaking, and precision parts manufacturing environments. The ZrN coating makes it a practical choice for cutting aluminum, steel, and non-ferrous alloys where heat and abrasion resistance are priorities. Typical users include machinists and tool-and-die professionals running production or prototype work where edge integrity and consistent finish quality are required. The 1/4-inch shank diameter fits standard collets and tool holders common in light to medium-duty milling setups.

Key Features

• Micrograin solid carbide construction for rigidity and wear resistance
• ZrN coating extends tool life and reduces friction during cutting
• 3-flute right-hand spiral design promotes chip clearance and smooth cutting
• 0.020-inch corner radius reduces edge chipping during profiling and contouring
• Centercutting design allows direct plunge milling without pre-drilling
• 37-degree helix angle improves cutting efficiency and surface finish

Compatibility

Designed as an OEM-style replacement or standard tooling option for 1/4-inch collet and tool holder systems used in CNC and manual milling applications.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Secure the shank to the proper insertion depth in the collet or tool holder and torque the retention hardware per the machine manufacturer's specifications. Verify runout with a dial indicator before beginning production cuts.