Accupro 12178646 Corner Radius End Mill 1/2 in 5 Flute

Product Description

The ACCUPRO 12178646 is a solid carbide corner radius end mill designed for precision milling in demanding metalworking applications. It features a 1/2 inch diameter with a 0.01 inch corner radius, reducing stress concentration at the cutting edge and extending tool life on ferrous and non-ferrous materials. The AlTiN coating provides high heat resistance and hardness, making this end mill well suited for dry and high-speed cutting operations. With 5 flutes and a variable index design, it delivers improved surface finish and reduced chatter compared to standard 4-flute configurations. Licensed machinists and CNC tooling specialists install and deploy this tool in production and job shop environments.

This end mill is used in vertical and horizontal machining centers for profiling, slotting, and peripheral milling operations. The centercutting capability allows it to plunge directly into the workpiece, adding flexibility to toolpath strategies. The right-hand flute direction and right-hand cutting direction make it compatible with standard CNC spindle configurations. A 5/8 inch length of cut and 2-1/2 inch overall length suit it to general-purpose milling tasks where moderate reach is required. Micrograin carbide substrate supports use on hardened steels, stainless, and high-temperature alloys.

Key Features

• AlTiN coating for high heat resistance and extended tool life in dry and high-speed cutting
• 5-flute variable index geometry reduces chatter and improves surface finish
• Centercutting design allows direct plunge entry without a pre-drilled hole
• Micrograin solid carbide substrate for rigidity and edge retention in hard materials
• 0.01 inch corner radius reduces edge chipping and workpiece stress risers
• Right-hand spiral flutes for standard CNC milling machine compatibility

Compatibility

Designed as an OEM-style replacement and standard tooling option for CNC machining centers and manual mills accepting 1/2 inch shank end mills with standard ER or side-lock collet systems.

Installation Notes

Installation is performed by a qualified machinist or CNC tooling technician. Ensure the spindle is fully stopped and the machine is in an e-stop or locked-out state before changing tooling. Verify collet bore and torque spec per machine manufacturer guidelines before engaging the drawbar or collet nut. Inspect the shank for burrs or contamination before seating to prevent runout issues.