Accupro 14797401 Ball End Mill 0.025 in 2 Flute Carbide

Product Description

The ACCUPRO 14797401 is a solid carbide ball end mill designed for precision milling in tight geometries and small-feature work. It carries a 0.025-inch cutting diameter and a 0.038-inch length of cut, making it well suited for fine detail passes in hard materials. The single-end tool features two flutes with a 30-degree right-hand helix, ground from micrograin carbide stock for edge stability at small diameters. An AlTiN coating provides thermal resistance and surface hardness, extending tool life in ferrous and hardened workpiece materials. Machinists and tool-and-die professionals working on CNC machining centers are the primary users of this tool.

This end mill is built for miniature and micro-milling applications where tight tolerances and small radii are required. Typical use cases include die and mold finishing, engraving, and 3D contouring of hardened steels, stainless alloys, and titanium. The 1/8-inch shank diameter fits standard collets and toolholding systems common on vertical machining centers and high-speed spindles. The 1.5-inch overall length keeps the tool rigid for demanding finish operations where deflection must be minimized.

Key Features

• 0.025-inch ball nose diameter for precise small-radius and micro-feature milling
• Solid micrograin carbide construction for rigidity and wear resistance at miniature diameters
• AlTiN coating for high-temperature performance in ferrous and hardened materials
• 30-degree right-hand helix promotes efficient chip evacuation in spiral flute geometry
• Single-end design with 2 flutes optimized for small-diameter cutting stability
• Diameter tolerance held to +0.0000 to -0.0010 inches for consistent fitment and finish quality

Compatibility

Designed for use with standard 1/8-inch collet toolholding systems on CNC vertical machining centers and high-speed spindle platforms suited for miniature end mill series tooling.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer guidelines for toolholding torque and runout verification. Ensure the spindle is fully stopped and the machine is in an estop or lockout state before changing tooling. Verify collet condition and seating before tightening to avoid runout that can fracture small-diameter carbide tools. At 0.025-inch diameter, excessive side load or interrupted cuts without appropriate feed-rate compensation significantly increases breakage risk.