Accupro 12180513 Corner Radius End Mill 1/8 in 4 Flute

Product Description

The ACCUPRO 12180513 is a solid carbide corner radius end mill designed for precision milling operations in ferrous and non-ferrous materials. It features a 1/8 inch diameter, a 0.015 inch corner radius, and four right-hand spiral flutes with a 40-degree helix angle. The AlTiN coating provides thermal resistance and extended tool life in high-temperature cutting environments. With a length of cut of 1/2 inch and a 1-1/2 inch overall length, this single-end, centercutting tool handles both plunge and peripheral milling. Micrograin carbide substrate supports tight tolerances and edge retention across extended runs.

This end mill is suited for CNC machining centers and manual mills where a corner radius profile is required to reduce stress concentrations and improve surface finish at part edges. Typical applications include die and mold work, aerospace component finishing, and general precision part machining. The centercutting geometry allows direct plunge entry without a pre-drilled hole, adding versatility in multi-axis setups. The 1/8 inch shank diameter fits standard collets and tool holders in that bore size.

Key Features

• 0.015 inch corner radius reduces edge chipping and stress risers on finished parts
• AlTiN coating extends tool life in high-heat, dry, and semi-dry cutting conditions
• Micrograin solid carbide substrate supports tight dimensional tolerances
• Four right-hand flutes with 40-degree helix improve chip evacuation and surface finish
• Centercutting design allows direct plunge milling without pilot hole
• Variable index flute spacing reduces chatter and harmonic vibration

Compatibility

Designed as a direct-fit replacement or new-install corner radius end mill for any CNC or manual milling setup accepting a 1/8 inch shank diameter collet or tool holder.

Installation Notes

Installation should be 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. Seat the shank to the full recommended insertion depth in the collet and torque the collet nut to the tool holder manufacturer's specification. Confirm runout with a dial indicator before initiating the cut program.