Accupro 12181925 Corner Radius End Mill 3/16 in 3 Flute Ticn

Product Description

The ACCUPRO 12181925 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining applications. It features a 3/16 inch (0.1875 inch) mill diameter with a 0.03 inch corner radius, a 5/8 inch length of cut, and a 2 inch overall length. The cutting geometry uses 3 right-hand spiral flutes with a 40-degree helix angle, and the tool is finished with a TiCN (titanium carbonitride) coating for improved hardness and wear resistance. The micrograin carbide substrate supports tight tolerances and extended tool life in demanding cutting conditions. This end mill is installed and used by machinists and CNC operators in job shops, production facilities, and tool rooms.

This end mill is suited for profiling, slotting, and contouring operations on ferrous and non-ferrous metals including steel alloys, stainless steel, and cast iron where a controlled corner radius is required to reduce stress concentrations in the finished part. The single-end, centercutting design allows plunge entry as well as peripheral cutting. The 3/16 inch shank diameter matches the mill diameter for direct collet or end mill holder mounting in standard CNC machining centers and manual mills. The right-hand flute direction and right-hand cutting direction are compatible with standard spindle rotation.

Key Features

• 0.03 inch corner radius reduces stress risers and produces controlled fillet geometry in milled features
• TiCN coating provides elevated surface hardness and lubricity for extended tool life versus uncoated carbide
• Micrograin solid carbide substrate supports precision tolerances and resistance to chipping at higher feeds and speeds
• Centercutting geometry allows direct plunge entry without pre-drilling
• 3 right-hand spiral flutes with 40-degree helix for efficient chip evacuation in finish and semi-finish passes
• Single-end configuration; shank and mill diameter are both 3/16 inch for straightforward collet mounting

Compatibility

Designed as an OEM-style solid carbide corner radius end mill for use in standard 3/16 inch collets or end mill holders on CNC machining centers and manual milling machines requiring a single-end, right-hand cutting tool.

Installation Notes

Installation is performed by machinists using a collet chuck or end mill holder rated for the 3/16 inch shank diameter. Confirm runout at the collet before beginning a cut, as excessive runout accelerates wear on small-diameter carbide tooling. Power down and lock out the spindle before mounting or removing the tool. Inspect the corner radius and cutting edges for chipping before each use, as solid carbide tools are brittle and can crack if mishandled or dropped.