Accupro 12182972 Corner Radius End Mill 1 in 4 Flute Carbide

Product Description

The ACCUPRO 12182972 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining environments. It features a 1-inch cutting diameter with a 0.03-inch corner radius, producing a consistent blend between the floor and wall of a milled pocket or slot while reducing stress concentration at the corner. The 4-flute, right-hand spiral geometry provides efficient chip evacuation and smooth surface finishes. With a 2.25-inch length of cut and a 5-inch overall length, this tool handles deeper reach applications where a standard-length end mill falls short. The bright, uncoated finish makes it suitable for use with cutting fluids in a range of ferrous and non-ferrous materials. Machinists, tool-and-die makers, and CNC operators are the primary users.

This end mill is suited for general-purpose and production milling in machine shops handling mold making, die work, and precision component manufacturing. The long-reach configuration supports applications where clearance from the spindle nose to the workpiece is a constraint. Its centercutting design allows plunge entry, giving operators flexibility for interpolated pocketing, ramping, and conventional slot milling. The 1-inch shank diameter seats in standard R8, CAT, BT, or HSK toolholders commonly found in vertical and horizontal machining centers.

Key Features

• Solid carbide micrograin construction for rigidity and edge retention
• 0.03-inch corner radius reduces tool chipping and part edge stress
• 4-flute right-hand spiral geometry for efficient chip removal and surface finish
• Centercutting design supports plunge, ramp, and pocket milling entry strategies
• Long-reach configuration with 2.25-inch LOC and 5-inch OAL for deep-cavity work
• Bright uncoated finish compatible with coolant and cutting oil application

Compatibility

Designed as a direct-fit replacement or standard tooling selection for CNC machining centers and manual mills accepting a 1-inch shank diameter end mill holder.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Ensure the spindle and toolholder are clean and free of chips before seating the shank. Torque the set screw or collet nut according to the toolholder manufacturer specifications. Confirm runout with a dial indicator before production cutting to protect the corner radius geometry and maintain tolerance.