Accupro 12183109 Corner Radius End Mill 5/8 in 4 Flute

Product Description

The ACCUPRO 12183109 is a solid carbide corner radius end mill designed for precision milling operations in metal fabrication and machining environments. It features a 5/8 inch cutting diameter with a 0.02 inch corner radius that reduces stress concentration at the bottom of milled slots and pockets, extending tool life and improving surface finish. The 4-flute spiral geometry and 40-degree helix angle deliver efficient chip evacuation and smooth cutting action. With a 2-1/8 inch length of cut and 4-5/8 inch overall length, this is a long-reach tool suited for deeper cavity work. It is installed and operated by machinists and CNC tooling specialists.

This end mill is suited for use on CNC machining centers and manual knee mills where corner radius profiles are required in mold making, die work, and general precision machining. The centercutting design allows plunge entry directly into the workpiece. Right-hand flute direction and right-hand cutting orientation make it compatible with standard spindle setups. The bright uncoated finish is appropriate for applications where coating interaction with the workpiece material is a concern, or where the operator prefers to apply custom coatings after purchase.

Key Features

• 0.02 inch corner radius reduces corner chipping and stress risers in milled profiles
• Solid carbide micrograin construction provides rigidity and wear resistance
• 4 right-hand spiral flutes with 40-degree helix for efficient chip evacuation
• Centercutting geometry enables direct plunge milling without a pre-drilled hole
• Long flute length of 2-1/8 inches supports deeper cavity and pocket machining
• Bright uncoated finish maintains dimensional consistency without coating buildup

Compatibility

Designed as an OEM-style replacement or direct-specification solid carbide corner radius end mill for CNC machining centers and manual milling machines accepting a 5/8 inch shank diameter collet or end mill holder.

Installation Notes

Installation should be performed by a qualified machinist following shop safety protocols. Ensure the spindle is fully stopped and the machine is locked out before changing tooling. Seat the 5/8 inch shank fully and evenly in a clean, undamaged collet or end mill holder to maintain runout tolerances. Verify spindle speed and feed rate settings against material-specific cutting data before engaging the workpiece.