Accupro 312922 Corner Radius End Mill 1/8 in 2 Flute Carbide Zrn

Product Description

The ACCUPRO 312922 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining applications. Built from micrograin solid carbide, this single-end mill features a 1/8 inch diameter, a 3/8 inch length of cut, and a ZrN (zirconium nitride) coating that improves wear resistance and reduces friction at the cutting edge. The 0.030 inch corner radius helps reduce stress concentration at the tool tip and extends edge life in demanding cuts. With a 45-degree helix angle and two right-hand spiral flutes, this end mill is suited for machinists and tool-and-die professionals working with ferrous and non-ferrous materials.

This end mill is used in vertical and horizontal milling machines, CNC machining centers, and manual knee mills for light profiling, slotting, and contouring work. Its centercutting geometry allows it to plunge directly into a workpiece. The 1/8 inch shank diameter fits standard collets and toolholders in that bore size. Regular length geometry and compact overall length of 1-1/2 inches make it well suited for work in tighter clearance zones or shallow pockets where a longer reach is not required.

Key Features

• Micrograin solid carbide construction for rigidity and edge retention
• ZrN coating reduces friction and improves tool life in dry and semi-dry cutting
• 0.030 inch corner radius reduces tip chipping and stress at the cutting edge
• Centercutting design allows direct plunge entry without a pre-drilled pilot hole
• 45-degree helix with two right-hand spiral flutes for efficient chip evacuation
• Single-end, regular length at 1-1/2 inches OAL for use in standard toolholding setups

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide corner radius end mill for standard 1/8 inch bore collets and toolholders in CNC and manual milling applications.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer guidelines for toolholder torque and runout specifications. Always power down and lock out the spindle before changing tooling. Verify collet bore size and shank diameter match before seating the tool. Inspect the cutting edges for chips or coating damage before each use.