Accupro 12465798 Ball End Mill 0.0330 in 4 Flute Altin Carbide

Product Description

The ACCUPRO 12465798 is a miniature solid carbide ball end mill designed for high-precision milling operations in tight-tolerance environments. With a 0.0330 inch cutting diameter and a 0.0490 inch length of cut, this tool is built for small-feature work where dimensional accuracy is critical. The four-flute, single-end geometry with a 30-degree helix angle promotes efficient chip evacuation and smooth surface finishes. An AlTiN coating increases surface hardness and thermal resistance, extending tool life in harder workpiece materials. The micrograin carbide substrate provides the rigidity needed to maintain tolerances in fine detail cutting passes. Machinists and toolroom operators handling small-part or mold work are the primary users of this tool.

This end mill is suited for precision milling of ferrous and hardened materials in CNC machining centers, tool and die shops, and mold-making operations. The miniature series designation makes it appropriate for micro-feature contours, small pockets, and finish passes on complex 3D profiles. The 1/8 inch shank diameter fits standard ER collet systems commonly found in high-speed machining spindles. With right-hand cutting and right-hand flute direction, it is compatible with conventional CNC milling setups running standard spindle rotation.

Key Features

• 0.0330 inch ball end diameter for micro-feature and fine-detail milling
• AlTiN coating for elevated thermal resistance and extended tool life in hard materials
• 4-flute spiral geometry with 30-degree helix for smooth chip flow and surface finish
• Micrograin solid carbide substrate for rigidity and edge integrity at small diameters
• Single-end, right-hand cut with 1/8 inch shank for standard collet compatibility
• Mill diameter tolerance of +0.0000 / -0.0010 inches for tight fitment to spec

Compatibility

Designed for use in CNC machining centers and high-speed spindles equipped with 1/8 inch ER collet or similar tool-holding systems. Suited for miniature milling applications in ferrous, hardened, and abrasion-resistant workpiece materials where AlTiN coating performance is required.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the spindle is fully stopped and the machine is in a safe state before inserting or removing the tool. Use a properly sized ER collet and torque the collet nut to the collet manufacturer specification to prevent runout and pullout at small diameters. At 0.0330 inch diameter, even minor runout or improper seating will accelerate tool wear and compromise dimensional accuracy.