Accupro 12182457 Corner Radius End Mill 1/4 in 4 Flute

Product Description

The ACCUPRO 12182457 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining applications. It features a 1/4 inch diameter, a 3/4 inch length of cut, and a 0.06 inch corner radius that reduces stress concentration at the cutting edge and extends tool life. With 4 flutes and a 40-degree helix angle, this end mill provides efficient chip evacuation and a smooth finish on a variety of workpiece materials. The bright uncoated finish makes it suitable for general-purpose cutting where coating is not required. This tool is installed and operated by machinists and CNC programmers in job shop and production environments.

This end mill is suited for profiling, slotting, and peripheral milling in ferrous and non-ferrous materials where a corner radius geometry is specified. It is a single-end, centercutting design with right-hand flute direction and right-hand cutting direction, allowing it to plunge directly into a workpiece. The 2-1/2 inch overall length and 1/4 inch shank diameter make it compatible with standard 1/4 inch collet systems on CNC machining centers and manual mills. Micrograin carbide construction supports use in high-speed and high-precision applications.

Key Features

• 0.06 inch corner radius reduces edge chipping and extends tool life compared to sharp-corner end mills
• Micrograin solid carbide construction for high wear resistance and rigidity
• 40-degree helix angle promotes efficient chip evacuation and improved surface finish
• Centercutting design allows direct plunge entry into the workpiece
• Right-hand cut, right-hand spiral flute configuration for standard CNC and manual mill setups
• Bright uncoated finish suitable for general-purpose and non-ferrous milling

Compatibility

Designed for use in standard 1/4 inch collet or end mill holders on CNC machining centers, knee mills, and manual vertical mills requiring a corner radius end mill with a 1/4 inch shank.

Installation Notes

Installation is performed by a qualified machinist or CNC operator. Ensure the machine spindle is fully stopped and locked out before inserting or removing the tool from the holder. Seat the shank fully into the collet or end mill holder and torque the retention hardware according to the toolholder manufacturer specifications. Verify runout with a dial indicator before beginning a production cut to confirm proper seating and avoid premature tool wear.