Accupro EM99943840 Chamfer Mill 3/8 in 3 Flute Solid Carbide

Product Description

The ACCUPRO EM99943840 is a solid carbide chamfer mill designed for deburring, chamfering, and edge-breaking operations on a wide range of workpiece materials. It features a 3/8 inch cutter head diameter and a 2-1/2 inch overall length, with a right-hand cutting direction and three flutes for efficient chip evacuation. The tool carries an AlTiN coating, which improves heat resistance and extends tool life in ferrous and hardened materials. It is a single-end design with a 3/8 inch straight shank. Machinists and tool-room technicians use this mill in CNC machining centers and manual mills where consistent chamfer geometry and edge quality are required.

This chamfer mill is suited for production and maintenance machining environments where edge preparation is a routine operation. It performs well on steel, stainless steel, cast iron, and similar ferrous materials where the AlTiN coating provides a thermal barrier under high cutting speeds. The 0.364 inch length of cut accommodates standard chamfer depths encountered in general part preparation and weld-prep applications. It is a practical choice for shops that chamfer holes, slots, and part perimeters before assembly or inspection.

Key Features

• 3/8 inch cutter head diameter with a 0.364 inch length of cut for controlled chamfer depth
• Three-flute geometry supports efficient chip removal and smooth cutting action
• AlTiN coating provides oxidation resistance and extends tool life in high-heat cutting conditions
• Solid carbide construction delivers rigidity and dimensional stability compared to HSS alternatives
• Single-end design with a 3/8 inch shank for straightforward tool-holder compatibility
• Right-hand cutting direction for use in standard CNC and manual milling setups

Compatibility

Designed as a replacement-style chamfer mill for use in standard 3/8 inch tool holders and collet chucks on CNC machining centers and manual milling machines.

Installation Notes

Installation is performed by a machinist or tool-room technician. Secure the 3/8 inch shank in a properly sized collet or end mill holder and torque the retention mechanism per the tool-holder manufacturer's specification. Confirm spindle speed and feed rate are appropriate for the workpiece material and coating type before engaging the cut. Inspect the cutting edges for wear or chipping before each use and replace the tool when edge condition degrades to avoid poor chamfer quality.