Accupro 12179045 Square End Mill 1/4 in 4 Flute Solid Carbide

Product Description

The ACCUPRO 12179045 is a solid carbide square end mill designed for high-performance milling operations across a wide range of materials. Built from micrograin carbide stock and coated with an nACRo finish, this four-flute tool delivers extended tool life in abrasive and hardened workpiece materials. The 40-degree spiral flute helix promotes efficient chip evacuation and smooth cutting action. With a 0.25-inch mill diameter, 1.5-inch length of cut, and 4-inch overall length, it is sized for precise slot milling, profiling, and peripheral cuts in machine shop and production environments. Machinists and CNC operators in job shops, tool rooms, and production floors are the primary users.

This end mill is suited for use on CNC machining centers and manual knee mills where a 0.25-inch shank toolholder is available. The centercutting geometry allows plunge entry directly into the workpiece, expanding its utility to pocket milling and ramping applications. The right-hand cut and right-hand flute configuration is standard for conventional CNC spindle setups. The nACRo coating makes this tool a strong candidate for dry or near-dry cutting in steel, stainless steel, cast iron, and similar ferrous materials where heat resistance at the cutting edge is critical.

Key Features

• Solid micrograin carbide construction for rigidity and wear resistance
• nACRo coating provides high-temperature resistance and extended tool life in ferrous materials
• 40-degree helix spiral flute promotes efficient chip evacuation
• Centercutting design enables plunge entry and pocket milling
• Right-hand cut and right-hand flute for standard CNC spindle compatibility
• Mill diameter tolerance of +0.000 / -0.002 inches for precise fitment

Compatibility

Designed as an OEM-style solid carbide square end mill for use in standard 0.25-inch shank toolholders on CNC machining centers and manual milling machines.

Installation Notes

Installation is performed by machinist or CNC setup personnel. Power down and lock out the spindle before inserting or removing the tool from the toolholder. Use a properly sized collet or end mill holder matching the 0.25-inch shank diameter and ensure the tool is seated to the correct gauge length before tightening. Inspect the cutting edges and coating for chips or wear before each use.