Accupro 12183003 Corner Radius End Mill 1/4 in 4 Flute

Product Description

The ACCUPRO 12183003 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining environments. Built from micrograin solid carbide, it delivers rigidity and wear resistance well beyond high-speed steel tooling. The 0.06-inch corner radius reduces stress concentrations at the cutting edge and produces consistent radiused profiles in pockets, slots, and contours. With a 4-flute, right-hand spiral configuration and a 40-degree helix angle, it provides efficient chip evacuation and smooth surface finishes. This is a single-end, centercutting tool, meaning it can be plunged directly into workpiece material. It is sold individually and suited for CNC machining centers and manual mills.

This end mill is appropriate for general-purpose and finishing passes in ferrous and non-ferrous materials where a controlled corner radius is required. The bright/uncoated finish makes it a cost-effective choice for aluminum, brass, and other non-ferrous applications, as well as softer steels. The long-length configuration, with a 1-1/8 inch length of cut and 3-inch overall length, allows reach into deeper pockets without requiring extended-reach tooling. Machinists, tool-and-die workers, and CNC operators working in job shops and production environments will find this tool suitable for both roughing and finishing profiles with radiused corners.

Key Features

• Micrograin solid carbide construction for superior hardness and edge retention
• 0.06-inch corner radius for consistent radiused pocket and slot profiles
• 4-flute, right-hand spiral design with 40-degree helix for efficient chip evacuation
• Centercutting capability allows direct plunge entry into workpiece material
• Bright/uncoated finish optimized for non-ferrous metals and softer steels
• Single-end, long-length configuration with 1-1/8 inch LOC and 3-inch OAL

Compatibility

Designed as an OEM-style replacement and standard fitment corner radius end mill for CNC machining centers and manual mills accepting a 1/4-inch shank diameter tool holder.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Verify the tool holder bore and collet are clean and free of chips before seating the shank. Confirm runout with a dial indicator after installation to avoid premature edge wear or dimensional error.