Accupro 12182794 Corner Radius End Mill 1/4 in 4 Flute

Product Description

The ACCUPRO 12182794 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining applications. It features a 1/4 inch mill diameter with a 0.01 inch corner radius, providing a controlled edge break that reduces chipping and extends tool life on ferrous and non-ferrous materials. The 4-flute, right-hand spiral geometry supports efficient chip evacuation and smooth surface finishes. At 2 inches overall length with a 3/8 inch length of cut, this is a stub-length configuration built for rigidity in close-tolerance work. Machinists and CNC operators install this tool in standard end mill holders or collet chucks.

This end mill is suited for slot milling, profiling, and contouring operations where a small corner radius is required to reduce stress concentration at the base of a feature. The centercutting design allows plunge entry. It is appropriate for job shop, tool room, and production environments running CNC machining centers or manual knee mills. The bright, uncoated finish makes it a practical choice for aluminum, brass, and other non-ferrous materials, as well as softer steels where a coating is not required.

Key Features

• 1/4 inch mill diameter with 0.01 inch corner radius for controlled edge geometry
• 4-flute right-hand spiral construction promotes smooth chip flow and surface finish
• Solid carbide micrograin substrate provides hardness and wear resistance
• Centercutting design permits direct plunge entry without pre-drilling
• Stub-length body maximizes rigidity and minimizes deflection in tight setups
• Bright, uncoated finish suitable for non-ferrous metals and general-purpose milling

Compatibility

Designed as an OEM-style replacement and standard fitment for CNC machining centers and manual mills using 1/4 inch collet chucks or end mill holders accepting a 1/4 inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist following shop safety protocols and machine tool manufacturer guidelines. Ensure the spindle is fully stopped and locked out before changing tooling. Confirm the shank is fully seated in the holder and torque the set screw or collet nut per the holder manufacturer specification. Verify runout with a dial indicator before beginning a production cut.