Accupro 12181749 Square End Mill 1/4 in 2 Flute Carbide

Product Description

The ACCUPRO 12181749 is a solid carbide square end mill designed for precision milling in metalworking and machining applications. It features a 0.25 inch cutting diameter, a 1.5 inch length of cut, and a 4 inch overall length, placing it in the extra long category for extended reach work. The two-flute spiral design with a 40-degree helix angle promotes efficient chip evacuation at moderate to high feed rates. Built from micrograin solid carbide, this end mill delivers consistent dimensional accuracy and edge retention in ferrous and non-ferrous materials. It is installed and used by machinists and CNC operators in job shop and production environments.

This end mill suits applications requiring deep slotting, profiling, and peripheral milling where standard-length tooling cannot reach. The centercutting geometry allows direct plunge entry into the workpiece without a pre-drilled pilot hole. The right-hand cut and right-hand flute configuration is the standard setup for conventional CNC machining centers and manual knee mills. The uncoated carbide surface is appropriate for aluminum, brass, plastics, and other non-ferrous materials where coating adhesion or heat buildup is a secondary concern.

Key Features

• Solid micrograin carbide construction for edge retention and dimensional stability
• 40-degree helix angle promotes chip evacuation and smooth cutting action
• Centercutting design allows direct plunge milling without a pilot hole
• Extra long 4 inch overall length for deep-pocket and extended-reach operations
• Right-hand cut, right-hand flute — standard orientation for most CNC setups
• Shank diameter matches cutting diameter at 0.25 inches for direct collet mounting

Compatibility

Designed as a direct-mount tooling solution for CNC machining centers, vertical mills, and manual knee mills equipped with a standard collet or end mill holder accepting a 0.25 inch shank diameter.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Power down and lock out the spindle before inserting or removing tooling. Seat the shank fully into the collet or tool holder and torque the retention nut per the tool holder manufacturer specification. Verify runout with a dial indicator before beginning a production cut to confirm proper seating and avoid premature tool wear.