Accupro 12464032 Ball End Mill 0.017 in 4 Flute Carbide Altin

Product Description

The ACCUPRO 12464032 is a miniature solid carbide ball end mill engineered for precision milling in tight geometries and fine-detail work. At 0.017 inches in diameter with a 0.051-inch length of cut (LOC), this tool is built for micro-scale applications where dimensional accuracy is critical. The four-flute spiral design with a 30-degree helix angle promotes efficient chip evacuation and surface finish quality. An AlTiN coating provides elevated heat resistance and extended tool life in hard and abrasive workpiece materials. The 1/8-inch shank diameter fits standard collet systems. This tool is sized for CNC machining centers and precision manual mills operated by machinists and tool-and-die professionals.

This miniature end mill is suited for mold and die work, medical component machining, aerospace detail work, and any application requiring small-diameter ball-nose profiling. The single-end configuration, right-hand cutting direction, and right-hand flute spiral make it a standard-orientation tool for conventional CNC setups. The micrograin carbide substrate supports rigidity at this diameter, reducing deflection during fine contouring passes. It is appropriate for use in materials including hardened steels, stainless, titanium, and non-ferrous alloys where AlTiN coating provides a thermal barrier.

Key Features

• 0.017-inch ball nose diameter with mill diameter tolerance of +0.0000 / -0.0010 inches for consistent sizing
• AlTiN coating for high-heat resistance and extended tool life in abrasive and hardened materials
• Micrograin solid carbide substrate for rigidity and reduced deflection at miniature diameters
• 4-flute spiral design with 30-degree helix angle for efficient chip flow and improved finish
• Single-end, right-hand cut and flute direction for standard CNC spindle compatibility
• 1/8-inch shank diameter with shank tolerance of -0.0001 / -0.0003 inches for secure collet seating

Compatibility

Designed as a miniature series replacement or standard tooling selection for CNC machining centers and precision mills accepting a 1/8-inch round shank collet. No specific machine model compatibility was stated in the product data.

Installation Notes

Installation should be performed by a qualified machinist familiar with micro-diameter tooling. Seat the shank fully into a clean, properly sized collet and torque to the collet manufacturer specification before spindle engagement. At 0.017 inches in diameter, this tool is extremely susceptible to breakage from runout, excessive feed rates, or improper collet fit — verify runout with a dial indicator before cutting. Do not use in worn or oversized collets.