Accupro 12463538 Ball End Mill 0.0070 in 2 Flute Carbide

Product Description

The ACCUPRO 12463538 is a miniature solid carbide ball end mill designed for high-precision milling in tight geometries and small-feature applications. It has a 0.0070-inch cutting diameter and a 0.0210-inch length of cut (LOC), making it well-suited for micro-detail work where dimensional accuracy is critical. The 2-flute, right-hand spiral configuration at a 30-degree helix angle promotes efficient chip evacuation while maintaining edge integrity in hard and abrasive materials. Constructed from micrograin solid carbide, this tool offers the rigidity and wear resistance required for demanding cuts at the micro scale. The bright/uncoated finish leaves the cutting edge geometry intact for applications where coating is not necessary or preferred.

This end mill is intended for use in CNC machining centers, die and mold work, medical component manufacturing, aerospace detail milling, and any application requiring fine-feature interpolation at sub-0.010-inch diameters. Its miniature series classification makes it a standard choice for machinists working on intricate cavities, radii, and contour paths where full-size tooling cannot reach. Single-end construction means the tool is dedicated to one cutting end, which is typical for miniature carbide end mills at this diameter range.

Key Features

• 0.0070-inch ball nose cutting diameter for micro-geometry milling
• 0.0210-inch length of cut (LOC) suited to shallow, precise passes
• 2-flute, right-hand spiral with 30-degree helix for controlled chip flow
• Micrograin solid carbide construction for rigidity and wear resistance
• 1/8-inch shank diameter with tight shank tolerance of -0.0001/-0.0003 inches
• Bright/uncoated finish — no thermal coating buildup on cutting edge
• Single-end, miniature series — standard fitment for micro CNC toolholders

Compatibility

Designed for use in CNC machining setups that accept a 1/8-inch shank end mill. Compatible with standard miniature collet systems and precision toolholders sized for 0.125-inch shank diameters. No specific machine model compatibility was provided in the product data.

Installation Notes

This tool should be installed by a qualified machinist familiar with micro-tooling best practices. Before mounting, ensure the spindle and toolholder are clean and free of runout, as even minor concentricity errors are magnified at sub-0.010-inch diameters and can cause premature tool failure. Tighten the collet to the toolholder manufacturer's specified torque using appropriate collet wrenches — do not overtighten. When programming feeds and speeds, consult the tooling manufacturer's recommendations for micrograin carbide at this diameter, as aggressive parameters will break the tool.