Accupro 12182660 Corner Radius End Mill 3/4 in 4 Flute

Product Description

The ACCUPRO 12182660 is a solid carbide corner radius end mill designed for precision milling operations in metal and composite materials. It features a 3/4 inch diameter, a 1-1/2 inch length of cut (1.7500 inches decimal), and a 0.03 inch corner radius that reduces stress concentration at the cutting edge and extends tool life in demanding applications. The 40-degree helix angle promotes efficient chip evacuation and smooth cutting action. This is a single-end, centercutting tool, meaning it can plunge directly into the workpiece. It is used by machinists and tool-and-die professionals in CNC machining centers and manual mills.

This end mill is suited for finish milling, profiling, slotting, and contouring operations where a small corner radius is required to blend walls and floors without sharp stress risers. The bright uncoated finish makes it a straightforward choice for non-ferrous metals, aluminum, brass, and general-purpose steel applications where coating is not required or where re-sharpening is anticipated. The 4-inch overall length provides adequate reach for standard workpiece setups without sacrificing rigidity.

Key Features

• 0.03 inch corner radius reduces edge chipping and extends tool life in profiling and contouring cuts
• 40-degree helix angle promotes smooth chip flow and reduced cutting forces
• Centercutting geometry allows direct plunge entry into the workpiece
• Micrograin solid carbide construction delivers hardness and wear resistance across a range of materials
• Right-hand flute direction and right-hand cutting for standard CNC and manual mill spindle compatibility
• Bright uncoated finish suitable for non-ferrous metals and general-purpose milling where re-sharpening is planned

Compatibility

Designed as a standard 3/4 inch shank corner radius end mill compatible with CNC machining centers, knee mills, and toolholders accepting a 3/4 inch straight shank, including ER collet chucks and end mill holders conforming to that bore diameter.

Installation Notes

Installation should be performed by a qualified machinist following standard toolholding procedures. Ensure the spindle is fully stopped and the machine is in a safe state before inserting or removing the tool. Seat the shank fully into the toolholder to the recommended engagement depth and torque the retention mechanism per the toolholder manufacturer specification. Verify runout with a dial indicator before beginning a production run to confirm proper seating and avoid premature tool wear.