Accupro 12182722 Corner Radius End Mill 1/8 in 4 Flute Carbide

Product Description

The ACCUPRO 12182722 is a single-end corner radius end mill designed for precision milling operations in metal, composite, and hard material applications. Built from micrograin solid carbide, it delivers rigidity and wear resistance in demanding cutting environments. The tool features a 0.03-inch corner radius that reduces stress concentration at part edges and produces a consistent, controlled fillet. With four right-hand spiral flutes and a bright, uncoated finish, it is suited for general-purpose milling where coating is not required. The stub-length profile keeps deflection low in tight setups. Machinists and tool-and-die professionals working on CNC machining centers are the primary users of this end mill.

This end mill is designed for high-precision machining tasks where edge integrity and dimensional accuracy are critical. The 1/8-inch diameter and 1/4-inch length of cut make it well suited for small-feature milling, slotting, and profiling in mold making, prototype work, and precision part production. Its centercutting capability allows plunge entry into the workpiece. The right-hand cutting direction and right-hand flute geometry are standard for conventional CNC milling setups.

Key Features

• Micrograin solid carbide construction for extended tool life in hard materials
• 0.03-inch corner radius reduces edge chipping and produces consistent fillets
• Four right-hand spiral flutes with centercutting capability for plunge and profile milling
• Bright, uncoated finish suitable for general-purpose and non-ferrous milling
• Stub-length design minimizes deflection in tight or deep-pocket setups
• Single-end configuration with 1/8-inch shank for standard collet systems

Compatibility

Designed as a direct-fit replacement for standard 1/8-inch shank collet holders used in CNC machining centers and manual milling machines requiring a single-end corner radius end mill.

Installation Notes

Installation should be performed by a qualified machinist or toolroom professional. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the 1/8-inch shank fully in a compatible collet or end mill holder and torque the collet nut to the holder manufacturer's specification. Verify runout with a dial indicator before beginning the cut, as excessive runout will accelerate tool wear and degrade surface finish.