Accupro 310455 Corner Radius End Mill 3/4 in 4 Flute Carbide

Product Description

The ACCUPRO 310455 is a solid carbide corner radius end mill designed for precision milling operations in demanding machining environments. It features a 3/4-inch diameter with a 0.030-inch corner radius, providing a controlled edge break that reduces chipping and extends tool life in interrupted cuts. The AlCrTiN coating improves heat and oxidation resistance, making it well suited for dry or high-speed cutting conditions. With four flutes, right-hand cutting and flute direction, and a variable index geometry, this end mill delivers balanced chip evacuation and reduced harmonic vibration. Machinists and CNC operators working in job shops, tool rooms, and production environments will find this tool appropriate for finishing and semi-finishing passes on ferrous and hardened materials.

This end mill is intended for use in vertical machining centers and CNC milling machines where close-tolerance profiling, slotting, and contouring are required. The centercutting design allows plunge entry, adding versatility for operations that require ramping or helical interpolation. The micrograin solid carbide substrate supports tight tolerances and consistent edge geometry across production runs. It is a single-end tool in the HS series.

Key Features

• AlCrTiN coating for high-temperature and oxidation resistance during aggressive cuts
• Solid micrograin carbide substrate for dimensional stability and edge retention
• 0.030-inch corner radius reduces stress concentration and chipping at the cutting edge
• Variable index flute spacing minimizes chatter and harmonic vibration
• Centercutting capability enables plunge milling, ramping, and helical entry
• 38-degree helix angle promotes smooth chip flow and efficient evacuation

Compatibility

Designed as an OEM-style replacement and standard production end mill for use in 3/4-inch collets, end mill holders, or hydraulic toolholders on CNC vertical machining centers and manual knee mills.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the spindle is fully stopped and the machine is in an e-stop or locked-out state before changing tooling. Seat the shank fully and evenly in the toolholder to the recommended gauge line and torque the retention mechanism per the toolholder manufacturer specifications. Verify runout with a dial indicator before beginning a production cut to confirm proper seating and minimize premature edge wear.