Accupro 12182881 Corner Radius End Mill 3/8 in 4 Flute

Product Description

The ACCUPRO 12182881 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining environments. It features a 3/8-inch diameter, a 0.01-inch corner radius, and a TiCN (Titanium Carbonitride) coating that improves wear resistance and extends tool life in ferrous and non-ferrous applications. With four right-hand spiral flutes and a centercutting design, this end mill handles both plunge cuts and peripheral milling. Micrograin carbide construction provides added rigidity and edge retention at higher feed rates. It is a single-end, stub-length tool with a 2-inch overall length.

This end mill is suited for use on CNC machining centers and manual mills in job shop, production, and toolroom settings. The stub-length configuration improves rigidity in applications where deflection or chatter is a concern. The TiCN coating makes it well-suited for milling alloy steels, tool steels, cast iron, and similar hard materials. Machinists and tool-and-die professionals typically reach for this geometry when a small, controlled corner radius is required to reduce stress concentrations at part features.

Key Features

• 3/8-inch mill diameter with matching 3/8-inch shank diameter for direct collet or end mill holder mounting
• 0.01-inch corner radius reduces stress risers and improves edge strength on finished parts
• TiCN coating provides enhanced hardness and heat resistance compared to uncoated carbide
• 4-flute, right-hand spiral design with centercutting capability for plunge and slot entry
• Micrograin solid carbide substrate for improved toughness and edge retention
• Stub-length (5/8-inch length of cut) construction maximizes rigidity and minimizes deflection

Compatibility

Designed as an OEM-style replacement or direct-fit tooling option for standard 3/8-inch collets, shrink-fit holders, or end mill holders used in CNC and manual milling applications.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician familiar with end mill holder torque and runout requirements. Ensure the machine spindle is fully stopped and locked out before changing tooling. Verify collet or holder bore size matches the 3/8-inch shank diameter before clamping. Inspect the tool shank and cutting edges for damage before each use, and confirm runout is within acceptable limits at the spindle before beginning a cut.