Accupro 315659 Corner Radius End Mill 3/4 in Solid Carbide

Product Description

The ACCUPRO 315659 is a solid carbide corner radius end mill designed for precision milling operations in metal cutting applications. It features a 3/4 inch diameter, a 1 inch length of cut, and a 5 inch overall length with a 2.5 inch extended reach. The three-flute, right-hand spiral design pairs with a ZrN (zirconium nitride) coating to reduce friction and extend tool life in demanding materials. The corner radius geometry measures 0.090 inches, which strengthens the cutting edge and reduces chipping compared to a sharp-corner tool. This is a single-end, centercutting end mill suited for machinists and toolroom professionals running CNC machining centers and manual mills.

This end mill is built for shops requiring extended reach into deep pockets, slots, and profiling operations where standard-length tools cannot reach. The micrograin solid carbide substrate supports high-speed cutting in ferrous and non-ferrous metals. The 37-degree helix angle promotes efficient chip evacuation and smooth surface finish. The 3/4 inch shank diameter matches the tool diameter, making it compatible with standard ER or side-lock toolholders of that bore size. Extended reach and a reduced neck diameter of 0.7125 inches allow access to features deeper in the workpiece without tool interference.

Key Features

• 3/4 inch (0.7500 inch) mill diameter with matched 3/4 inch shank diameter
• ZrN coating for improved wear resistance and reduced friction
• Micrograin solid carbide construction for rigidity and edge retention
• 0.090 inch corner radius strengthens the cutting edge and reduces corner chipping
• 2.5 inch extended reach with 0.7125 inch neck diameter for deep-pocket access
• Centercutting design permits plunge entry directly into the workpiece
• Three right-hand flutes with 37-degree helix for efficient chip evacuation

Compatibility

Designed as an OEM-style solid carbide corner radius end mill for use in CNC machining centers and manual milling machines equipped with 3/4 inch toolholders. No specific model compatibility was stated by the manufacturer for this part number.

Installation Notes

Installation should be performed by a qualified machinist or toolroom professional. Secure the shank fully within the toolholder to the recommended gauge line, ensuring proper grip length before tightening. Verify spindle runout is within acceptable limits prior to cutting to protect the corner radius tolerance of plus or minus 0.002 inches. Always confirm the machine is at a complete stop and the spindle is locked before changing or inspecting tooling.