Accupro 12183507 Corner Radius End Mill 5/16in 4 Flute Ticn

Product Description

The ACCUPRO 12183507 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining applications. It features a 5/16 inch (0.3125 inch) mill diameter, a 0.015 inch corner radius, and a TiCN (Titanium Carbonitride) coating that improves wear resistance and extends tool life in ferrous and non-ferrous materials. With 4 flutes and a right-hand spiral flute design, this single-end, centercutting tool delivers clean material removal and smooth surface finishes. It is built from micrograin solid carbide for dimensional stability under high cutting loads.

This end mill is suited for milling slots, pockets, and contoured profiles where a small corner radius is required to reduce stress concentrations and improve part geometry. The long-length designation, 1 inch length of cut and 4 inch overall length, provides reach for deeper cavity work. It is used in CNC machining centers and manual knee mills across job shops, tool-and-die operations, and production machining environments. The right-hand cutting direction is compatible with standard spindle rotation on most vertical machining centers.

Key Features

• 0.015 inch corner radius reduces corner chipping and improves part edge integrity
• TiCN coating provides enhanced hardness and heat resistance for extended tool life
• Micrograin solid carbide construction maintains dimensional accuracy under aggressive feeds
• 4-flute, right-hand spiral design balances chip evacuation with surface finish quality
• Centercutting capability allows plunge milling entry without a pre-drilled hole
• Long-length geometry supports deeper cavity and slot milling applications

Compatibility

Designed as an OEM-style solid carbide corner radius end mill compatible with standard 5/16 inch collets and tool holders used in CNC and manual vertical milling machines.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the spindle is fully stopped and the machine is in a safe, locked-out state before changing tooling. Seat the 5/16 inch shank fully and evenly in a matched collet or end mill holder and torque the retention mechanism per the tool holder manufacturer specification. Verify runout with a dial indicator before beginning a cutting operation.