Accupro 12183111 Corner Radius End Mill 5/8 in 4 Flute

Product Description

The ACCUPRO 12183111 is a solid carbide corner radius end mill designed for precision milling operations in ferrous and non-ferrous materials. It features a 5/8 inch cutting diameter with a 0.045 inch corner radius, which reduces stress concentrations at the base of milled features and extends tool life in demanding cuts. The 4-flute, right-hand spiral geometry provides a balance of chip evacuation and surface finish quality. With a long-length classification and 2-1/8 inch length of cut, this end mill handles deeper pockets and slots where standard-length tools fall short. Machinists and toolroom professionals select this type of tooling for CNC milling centers and manual knee mills requiring tight-tolerance profiling and slotting.

This end mill is suited for shop floor and production environments where corner radius geometry is required to meet part print callouts on fillets and pocket floors. The single-end, centercutting design allows plunge entry, making it practical for interpolated pocket milling without a pre-drilled start hole. The bright uncoated finish is compatible with aluminum, brass, copper, and other non-ferrous materials where coatings may cause galling, and it performs in light steel cuts when appropriate cutting parameters are applied. The micrograin carbide substrate supports sharper edge retention on tight-tolerance work.

Key Features

• 0.045 inch corner radius reduces stress risers and part rejection from sharp-corner cracking
• 4-flute right-hand spiral geometry balances material removal rate with surface finish
• Centercutting design enables direct plunge entry for pocket interpolation
• Long-length classification with 2-1/8 inch LOC reaches deeper pockets and shoulders
• Micrograin solid carbide substrate delivers edge stability at higher feed rates
• Bright uncoated finish is well-suited to non-ferrous and aluminum applications

Compatibility

Designed as a direct-fit tooling solution for standard 5/8 inch collets, end mill holders, and shrink-fit holders used on CNC vertical machining centers and manual milling machines. No specific machine model compatibility data was provided in the product input.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Secure the shank fully within the holder to the minimum insertion depth recommended by the tool holder manufacturer, and torque set screws or collet nuts to specification per the holder documentation. Confirm runout at the cutting edge with a dial indicator before production use, as excessive runout accelerates edge wear and degrades corner radius accuracy. Always come to a complete spindle stop before measuring, adjusting, or removing the tool.