Accupro 12176899 Corner Radius End Mill 1/16 in 4 Flute

Product Description

The ACCUPRO 12176899 is a solid carbide corner radius end mill designed for precision milling operations in ferrous and non-ferrous metals. It features a 1/16 inch cutting diameter, a 0.01 inch corner radius, and four flutes arranged in a right-hand spiral configuration. The AlTiN (Aluminum Titanium Nitride) coating provides high-temperature hardness and oxidation resistance, making this tool suitable for dry or semi-dry cutting at elevated speeds. The micrograin carbide substrate supports sharp edge retention and extended tool life in demanding cutting conditions. A licensed machinist or tooling technician installs and operates this end mill in a CNC machining center or manual milling machine.

This end mill is suited for finish and semi-finish milling passes where a controlled corner radius is required to reduce stress concentrations in machined profiles. The centercutting design allows plunge entry, enabling slotting, profiling, and pocketing operations. The 3/16 inch length of cut and 1-1/2 inch overall length make it appropriate for shallow-depth work in tight cavities or on small workpiece features requiring tight dimensional tolerances.

Key Features

• AlTiN coating for high-heat resistance and extended tool life in ferrous materials
• Micrograin solid carbide substrate for rigidity and sharp edge retention
• 0.01 inch corner radius reduces stress risers and improves surface finish at part corners
• Centercutting capable — supports plunge entry for slotting and pocketing
• Right-hand flute direction and right-hand cutting for standard spindle rotation
• Single-end design with a 1/8 inch shank for use in standard collet systems

Compatibility

Designed for use in CNC machining centers and manual milling machines equipped with collet toolholders accepting a 1/8 inch shank diameter.

Installation Notes

Installation and operation should be performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and locked out before inserting or removing the tool from the collet holder. Verify collet size matches the 1/8 inch shank before tightening to avoid runout. Do not exceed the recommended depth of cut for the 3/16 inch length of cut to prevent tool deflection or breakage.