Accupro 12176687 Corner Radius End Mill 7/16 in 3 Flute

Product Description

The ACCUPRO 12176687 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining applications. It features a 7/16-inch diameter with a 0.02-inch corner radius and a 3-flute, right-hand spiral configuration that promotes efficient chip evacuation and smooth cutting performance. The 35-degree helix angle reduces cutting forces and supports stable tool engagement at higher feed rates. A TiCN coating adds surface hardness and wear resistance, extending tool life in ferrous and non-ferrous materials. This end mill is centercutting, allowing direct plunge entry into workpieces. It is intended for use by machinists and CNC operators in production and toolroom environments.

This end mill is suited for milling slots, pockets, and contours where a small corner radius is needed to blend floor-to-wall transitions and reduce stress concentrations in the finished part. The stub-length geometry and 7/16-inch shank diameter provide rigidity for tight-tolerance work. Common applications include profiling and finishing cuts on steel, stainless steel, cast iron, and high-temperature alloys. The single-end design is standard for toolroom and CNC machining center use.

Key Features

• 0.02-inch corner radius reduces stress concentrations at floor-to-wall transitions
• TiCN coating increases surface hardness and wear resistance for extended tool life
• 3-flute, right-hand spiral design promotes efficient chip evacuation
• 35-degree helix angle lowers cutting forces and supports stable engagement
• Centercutting geometry allows direct plunge milling without a pre-drilled entry
• Micrograin solid carbide construction maintains dimensional stability under heat

Compatibility

Designed as an OEM-style solid carbide corner radius end mill compatible with standard 7/16-inch collets, shrink-fit holders, and milling chucks used on CNC machining centers and manual knee mills.

Installation Notes

This end mill should be installed by a qualified machinist following the toolholder manufacturer guidelines for runout and clamping torque. Ensure the spindle and toolholder are clean and free of chips before seating the shank. Always verify spindle direction matches the right-hand cutting geometry before starting the machine. Use appropriate cutting fluid or coolant for the workpiece material to protect the coating and maintain tool life.