Accupro 12182099 Corner Radius End Mill 5/8 in 3 Flute Carbide

Product Description

The ACCUPRO 12182099 is a single-end corner radius end mill designed for precision milling in ferrous and non-ferrous materials. Built from micrograin solid carbide, it offers high rigidity and wear resistance compared to high-speed steel tooling. The 0.09-inch corner radius reduces stress concentration at the cutting edge and produces a blended radius profile on workpiece features. With a 5/8-inch diameter, three flutes, and a 40-degree helix angle, it is suited for efficient chip evacuation and smooth surface finishes. This tool is installed by machinists and tool-and-die professionals working on CNC vertical or horizontal machining centers.

This end mill is used in job shop, production machining, and tool room environments where a controlled corner radius is required on pockets, slots, and profiled surfaces. The centercutting geometry allows plunge entry as well as conventional and climb milling. The bright, uncoated finish is appropriate for a wide range of general-purpose milling applications where a coating is not required or where regrinding is anticipated. Right-hand flute direction and right-hand cutting orientation are standard for conventional spindle setups.

Key Features

• Micrograin solid carbide construction for improved hardness and edge retention
• 0.09-inch corner radius reduces tool breakage and improves workpiece surface quality at corners
• Three-flute, 40-degree helix design promotes efficient chip evacuation
• Centercutting capability allows direct plunge entry without a pre-drilled hole
• Bright, uncoated finish suitable for general-purpose milling and regrindable profiles
• Single-end configuration with a 5/8-inch shank diameter for direct collet or end mill holder mounting

Compatibility

Designed as a general-purpose replacement or production corner radius end mill for use in standard 5/8-inch collets, end mill holders, or shrink-fit toolholders on CNC and manual machining centers.

Installation Notes

Installation should be performed by a qualified machinist following the toolholder manufacturer's runout and retention specifications. Confirm spindle taper and holder bore are clean and free of debris before seating the shank. Torque drawbar or set screws only to the toolholder manufacturer's stated values — do not over-torque. Verify tool runout at the cutting diameter with a dial indicator before beginning a cut.