Accupro EM99943852 Chamfer Mill 1/4 in 4 Flute Carbide

Product Description

The ACCUPRO EM99943852 is a single-end chamfer mill designed for deburring, chamfering, and edge-breaking operations on metallic workpieces. Built from solid carbide and coated with AlTiN (aluminum titanium nitride), it handles high-temperature cutting environments and abrasive materials without significant edge degradation. The cutter head measures 0.25 inches in diameter with a 0.577-inch length of cut, providing controlled, repeatable chamfer geometry. Four right-hand flutes deliver smooth chip evacuation and surface finish. Machinists and CNC operators in production and job-shop settings install this tool in standard end mill holders or collet chucks for high-speed chamfering passes.

This chamfer mill suits CNC machining centers, manual mills, and multi-axis setups where consistent edge preparation is required. It is appropriate for use on ferrous metals, stainless steel, hardened steels, and other difficult-to-machine alloys where AlTiN coating performance is advantageous. The 0.25-inch shank diameter fits standard 1/4-inch collets and toolholders common in both production and prototype environments. With a 2.5-inch overall length, it maintains adequate reach for most standard chamfering applications without excessive overhang.

Key Features

• Solid carbide construction for rigidity and wear resistance in demanding cutting conditions
• AlTiN coating improves heat resistance and extends tool life in ferrous and high-hardness materials
• 4-flute, right-hand cutting geometry for smooth finish and efficient chip removal
• Single-end design with 0.577-inch length of cut for precise chamfer depth control
• 1/4-inch shank diameter for compatibility with standard collets and toolholders
• 2.5-inch overall length balances reach and rigidity in typical setups

Compatibility

Designed as a standard 1/4-inch shank chamfer mill for use in CNC machining centers and manual mills equipped with 1/4-inch collets or end mill holders.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the shank fully into the collet or toolholder and torque the retention mechanism to the toolholder manufacturer's specification. Verify runout with a dial indicator before initiating a cutting pass, as excessive runout accelerates wear on solid carbide tools.