Accupro 12183144 Corner Radius End Mill 3/4 in 4 Flute Ticn

Product Description

The ACCUPRO 12183144 is a solid carbide corner radius end mill designed for precision milling operations in ferrous and non-ferrous metals. It features a 0.015 inch corner radius that reduces stress concentration at the cutting edge, extending tool life in high-load applications. The 4-flute geometry paired with a TiCN coating delivers improved wear resistance and surface finish quality. With a 3/4 inch mill diameter and a 2-1/4 inch length of cut, this tool handles deep slotting, profiling, and finishing passes where long reach is required. Machinists and tool room operators specify this end mill for demanding production environments where edge integrity and dimensional accuracy are critical.

This end mill is suited for use in CNC machining centers handling medium-to-hard ferrous alloys, stainless steels, and tool steels. Its long-flute configuration makes it appropriate for deep cavity work, stepped profiling, and finish milling of walls and floors where standard-length end mills cannot reach. The single-end, center-cutting design allows plunge entry and direct ramping without a pre-drilled pilot hole. The right-hand cutting direction and right-hand spiral flute orientation are compatible with standard CNC spindle rotation.

Key Features

• 0.015 inch corner radius reduces edge chipping and stress concentration during aggressive cuts
• TiCN coating provides elevated hardness and wear resistance for extended tool life in ferrous materials
• Micrograin solid carbide substrate maintains sharp cutting geometry under high feed rates
• 4-flute spiral design balances chip evacuation with surface finish quality
• Center-cutting capability allows direct plunge entry without a pre-drilled starting hole
• Long flute length of 2-1/4 inches supports deep pocket and cavity milling applications

Compatibility

Designed as a direct-fit tool for CNC machining centers and manual mills with a 3/4 inch collet or end mill holder. Shank diameter is 3/4 inch with a tolerance of -0.0001 to -0.0004 inches for secure chuck engagement.

Installation Notes

Installation should be performed by a qualified machinist familiar with tool holding systems and CNC setup procedures. Ensure the spindle is fully stopped and the machine is in a safe state before loading or unloading the tool. Seat the shank fully into the holder to the minimum recommended engagement depth for the holder type in use. Verify runout with a dial indicator before commencing a production cut, as excessive runout accelerates flute wear and degrades corner radius accuracy.