Accupro 312705 Corner Radius End Mill 5/8 in 7 Flute Alcrtin

Product Description

The ACCUPRO 312705 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining applications. It features a 0.625-inch diameter with a 0.120-inch corner radius and a 2-inch length of cut, making it well suited for profiling, contouring, and finishing passes on hardened materials. The 7-flute geometry and 38-degree helix angle support high material removal rates while maintaining surface finish quality. An AlCrTiN coating provides thermal resistance and wear protection, extending tool life in demanding cutting environments. Licensed machinists and CNC programmers working with ferrous and hardened workpieces will find this tool appropriate for high-speed roughing and semi-finishing operations.

This end mill is intended for use in CNC machining centers and manual mills where a corner radius profile is required to reduce stress concentrations at part edges. It is a single-end, non-centercutting tool, meaning it is not designed for plunge cutting and should be entered via ramp or helical interpolation. The straight-cylindrical shank with a 5/8-inch diameter is compatible with standard ER and side-lock toolholders. The 5-inch overall length provides reach for moderate-depth cavities without excessive overhang.

Key Features

• Solid micrograin carbide construction for rigidity and wear resistance
• AlCrTiN coating for high-heat and oxidation resistance in hard-material cutting
• 7-flute design increases chip load per revolution and improves surface finish
• 0.120-inch corner radius reduces edge chipping and stress at workpiece corners
• 38-degree helix angle supports smooth cutting action and efficient chip evacuation
• Right-hand cut, right-hand spiral flute configuration
• Non-centercutting — requires ramp or helical entry; not suitable for direct plunge

Compatibility

Designed as an OEM-style replacement and standard fitment corner radius end mill for CNC machining centers and mills accepting a 5/8-inch straight-cylindrical shank toolholder.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and the tool changer is disabled before handling or changing tooling. Seat the shank fully into the toolholder and torque the retention mechanism per the toolholder manufacturer specification. Because this is a non-centercutting end mill, program ramp or helical entry moves rather than direct axial plunge to avoid tool damage.