Accupro 2500189 Square End Mill 1/8 in 3 Flute Carbide

Product Description

The ACCUPRO 2500189 is a 3-flute solid carbide square end mill designed for high-performance milling in metalworking and machining applications. Built from micrograin carbide and coated with TiCN (Titanium Carbonitride), it delivers improved hardness and wear resistance compared to uncoated tooling. The 1/8 inch diameter cutter features a 60-degree helix angle, which promotes aggressive chip evacuation and reduces heat buildup during cutting. With a stub-length configuration and 1/4 inch length of cut, this end mill is suited for rigid setups where tool deflection must be minimized. It is a center-cutting, right-hand cutting and right-hand flute tool used in CNC machining centers and manual mills.

This end mill is commonly used in mold and die work, precision part machining, and finishing operations on ferrous and non-ferrous metals. The TiCN coating makes it a strong choice for cutting hardened steels, stainless steel, and cast iron. The 1/8 inch shank diameter fits standard collets and end mill holders used in CNC machining centers, vertical mills, and high-speed spindle setups. The stub-length design provides additional rigidity for small-diameter profiling, slotting, and side milling operations where chatter control is critical.

Key Features

• Micrograin solid carbide construction for high rigidity and edge retention
• TiCN coating increases surface hardness and extends tool life on ferrous materials
• 60-degree helix angle promotes efficient chip flow and reduced cutting temperatures
• Center-cutting design allows plunge entry into workpieces
• Stub-length configuration minimizes deflection in small-diameter applications
• Right-hand cutting and right-hand flute orientation for standard CNC and manual mill setups

Compatibility

Designed for use in standard 1/8 inch collets and end mill holders on CNC machining centers, vertical milling machines, and high-speed spindles. Verify holder and collet runout tolerances before use, as shank diameter tolerance is +0.0001 inches to -0.0004 inches.

Installation Notes

Installation should be performed by a qualified machinist familiar with tool holding systems and cutting parameters. Secure the shank fully within the collet or end mill holder to the manufacturer-recommended engagement depth before tightening. Inspect the tool for chips, cracks, or coating damage prior to each use. Do not exceed the tool's rated cutting parameters for the workpiece material and machine spindle.