Accupro 2500471 Ball End Mill 4mm 3 Flute Solid Carbide Zrn

Product Description

The ACCUPRO 2500471 is a single-end ball end mill designed for precision milling operations in ferrous and non-ferrous materials. Built from micrograin solid carbide, it delivers rigidity and wear resistance in demanding cutting conditions. The 4.00 mm diameter cutting head is paired with a 12.00 mm length of cut and a 37-degree helix angle, promoting efficient chip evacuation and smooth surface finishes. A ZrN (zirconium nitride) coating reduces friction and extends tool life. The 4.00 mm shank diameter matches the cutting diameter for balanced tool holding. This end mill is suited for machinists and tooling professionals running CNC milling centers or manual knee mills requiring tight-tolerance profiling and contouring work.

This end mill is intended for use in machining applications that require a ball-nose profile, including 3D contouring, slotting, and finishing passes on molds, dies, and precision components. The 3-flute configuration balances chip clearance with cutting edge count, making it effective across a range of materials including alloy steels, stainless steels, and hardened workpieces when paired with appropriate feeds and speeds. The 50.00 mm overall length provides a compact reach suited to standard tool holding in production and prototype environments.

Key Features

• Micrograin solid carbide construction for high hardness and edge retention
• ZrN coating reduces friction and improves tool life in ferrous materials
• 37-degree helix angle promotes efficient chip flow and reduced cutting forces
• 3-flute design balances material removal rate with chip evacuation
• Right-hand cut and right-hand flute spiral for standard CNC mill setups
• Single-end ball nose profile suited for 3D contouring and profiling passes

Compatibility

Designed as a standard-shank ball end mill compatible with ER collet chucks, shrink-fit holders, and milling chucks accepting a 4.00 mm shank diameter. Manufacturer catalog reference number 350MM-01575BNC5.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the spindle fully stopped and machine power locked out per shop safety procedures. Verify collet or chuck runout before cutting to preserve the tight mill diameter tolerance of +0.000/-0.002 inches. Do not exceed manufacturer-recommended feeds and speeds for the workpiece material and coating type. Inspect the cutting edges for chipping or wear before each use.