Accupro 12176904 Corner Radius End Mill 0.0781 in 4 Flute

Product Description

The ACCUPRO 12176904 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining applications. It features a 0.0781 inch diameter with a 0.005 inch corner radius, a 4-flute right-hand spiral configuration, and a TiCN (Titanium Carbonitride) coating that improves wear resistance and extends tool life in ferrous and non-ferrous materials. The micrograin carbide substrate provides rigidity and edge retention at elevated cutting speeds. This is a single-end, centercutting tool, meaning it can plunge directly into a workpiece as well as perform peripheral and slot milling.

This end mill is suited for finish milling, contouring, and profiling operations where a controlled corner radius is required to reduce stress concentrations in part geometry. The 0.25 inch length of cut and 1.5 inch overall length make it appropriate for shallow-depth work in tool-and-die, mold making, aerospace component machining, and general precision shop applications. The 0.125 inch shank diameter is compatible with standard collet systems. It is installed and operated by machinists and CNC programmers on vertical machining centers, knee mills, and similar equipment.

Key Features

• 0.005 inch corner radius reduces stress risers and improves part finish at corners
• TiCN coating increases surface hardness and lubricity for extended tool life
• Micrograin solid carbide construction for rigidity and edge retention
• Centercutting design allows direct plunge entry into workpiece material
• Right-hand flute direction with 30-degree helix angle for efficient chip evacuation
• Single-end configuration with 4 flutes for balance between chip clearance and finish quality

Compatibility

Designed as an OEM-style replacement or standard tooling selection for CNC machining centers and manual mills accepting a 0.125 inch shank diameter collet or tool holder.

Installation Notes

Installation is performed by a qualified machinist or CNC operator. The tool should be seated fully and securely in a collet or end mill holder before operation, and runout should be verified with a dial indicator prior to cutting. Ensure the spindle is fully stopped and machine is in a safe state before tool changes. Consult the machine manufacturer's guidelines and applicable shop safety standards for proper cutting parameters and PPE requirements.