Accupro 12182137 Corner Radius End Mill 3/4 in 3 Flute Ticn

Product Description

The ACCUPRO 12182137 is a single-end, centercutting corner radius end mill machined from micrograin solid carbide and coated with titanium carbonitride (TiCN). It carries a 3/4-inch mill diameter, a 1-1/2-inch length of cut, and a 0.06-inch corner radius that reduces stress concentrations at the cutting edge. The three-flute, right-hand spiral geometry supports efficient chip evacuation in a wide range of milling applications. At 4 inches overall length with a 3/4-inch shank diameter, this tool fits standard ER and side-lock toolholders common in CNC machining centers.

This end mill is suited for profiling, slotting, and contouring operations where a defined corner radius is required to meet part geometry or reduce corner cracking in the workpiece. The TiCN coating improves surface hardness and wear resistance compared to uncoated carbide, making it a practical choice for ferrous and non-ferrous materials in production and job-shop environments. A licensed machinist or CNC operator typically selects this tool for finishing and semi-finishing passes on milling machines and machining centers.

Key Features

• Micrograin solid carbide substrate for increased hardness and edge retention
• TiCN coating improves wear resistance and reduces built-up edge
• 0.06-inch corner radius reduces stress at cutting corners and extends tool life
• Three right-hand spiral flutes with centercutting capability for plunge entry
• 40-degree helix angle promotes smooth cutting action and chip flow
• Single-end design; 3/4-inch shank diameter fits standard toolholders

Compatibility

Designed as an OEM-style replacement or direct-use corner radius end mill for CNC milling machines and machining centers accepting a 3/4-inch shank diameter toolholder.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the machine spindle is fully stopped and the tool changer is in a safe state before mounting or removing the end mill. Secure the shank to the specified toolholder torque per the toolholder manufacturer guidelines, and verify runout with a dial indicator before cutting. Observe applicable machine guarding requirements and shop safety protocols during setup.