Accupro 39155494 Ball End Mill 5/32 in 4 Flute Solid Carbide

Product Description

The ACCUPRO 39155494 is a single-end ball end mill designed for precision milling operations in ferrous and hardened materials. Built from solid carbide and coated with AlTiCrN, it delivers high heat resistance and extended tool life in demanding cutting environments. The ball nose geometry produces accurate contoured profiles and three-dimensional surface finishes. At 5/32 inch (0.1563 inch) diameter with a 4-flute configuration and a variable index design, this end mill balances chip evacuation with surface finish quality. It is sized for work on small-feature milling, die and mold work, and detail profiling passes.

This end mill is suited for use in CNC machining centers and high-speed milling applications where tight tolerances and fine surface finishes are required. The 3/16 inch shank diameter fits standard ER and precision collet systems. With a 0.1330 inch length of cut and a 1.0000 inch neck length, it is capable of reaching into pockets and slots with minimal deflection. Machinists working in tool and die, aerospace component work, and precision part production will find this geometry well matched to finishing and semi-finishing passes in harder materials.

Key Features

• Solid carbide construction for rigidity and wear resistance in hardened and abrasive materials
• AlTiCrN coating provides high-temperature oxidation resistance and reduced friction at the cutting edge
• Variable index flute spacing reduces harmonic vibration during high-speed cuts
• Ball nose tip geometry for accurate 3D contouring and profiled surface work
• Single-end configuration with a 3/16 inch shank for standard collet compatibility
• 1.0000 inch neck length allows reach into deep pockets without excessive shank engagement

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide ball end mill compatible with CNC machining centers and manual mills equipped with standard collet systems accepting a 3/16 inch shank diameter.

Installation Notes

Installation and use of this end mill should be performed by qualified machinists or CNC tooling technicians. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Seat the shank fully and evenly in the collet or tool holder and torque the collet nut to the tool holder manufacturer's specification. Inspect the cutting edges and coating for damage before each use, and never exceed the recommended runout tolerance for the tool diameter.