Accupro 12181302 Corner Radius End Mill 3/16 in 2 Flute

Product Description

The ACCUPRO 12181302 is a solid carbide corner radius end mill designed for precision milling operations in ferrous and non-ferrous materials. It carries a 3/16 inch (0.1875 inch) mill diameter with a 0.045 inch corner radius and a TiCN (Titanium Carbonitride) coating that improves wear resistance and tool life in demanding cutting environments. The 2-flute, right-hand spiral geometry supports efficient chip evacuation in slotting, profiling, and contouring applications. The micrograin carbide substrate provides the rigidity and edge retention needed for tight-tolerance work. Machinists and tool-and-die professionals rely on this configuration for detail milling where corner geometry consistency is critical.

This end mill is suited for use in CNC machining centers and manual mills performing finish work on molds, dies, and close-tolerance components. The single-end, centercutting design allows plunge entry, making it effective for pocketing and ramp-entry cuts. The 5/8 inch length of cut and 2 inch overall length position it for short-reach applications where rigidity is prioritized over extended reach. The 40-degree helix angle promotes smooth cutting action and reduced chatter at higher feed rates.

Key Features

• TiCN coating for improved hardness and wear resistance in ferrous materials
• Micrograin solid carbide substrate for superior edge retention and rigidity
• 0.045 inch corner radius reduces stress concentrations and improves surface finish at part edges
• Centercutting design supports direct plunge entry and ramp interpolation
• Right-hand cut, right-hand spiral flute geometry for standard CNC spindle compatibility
• 40-degree helix angle promotes chip flow and reduces cutting forces

Compatibility

Designed as a direct-fit replacement or standard tooling selection for CNC machining centers and manual mills accepting a 3/16 inch shank diameter tool holder or collet.

Installation Notes

Installation should be performed by a qualified machinist following shop safety protocols. Ensure the spindle is fully stopped and the machine is in a safe state before changing tooling. Seat the shank fully into a clean, undamaged collet or end mill holder and torque the retention nut to the tool holder manufacturer specification. Verify runout with a dial indicator before beginning a cut, particularly when corner radius tolerance is critical to the finished part.