Accupro 12181226 Square End Mill 0.0394 in 2 Flute Carbide

Product Description

The ACCUPRO 12181226 is a solid carbide square end mill designed for precision milling operations in metalworking and machining applications. With a 0.0394 inch (1.00 mm) cutting diameter and a 0.1575 inch (4.00 mm) length of cut, this micro-sized end mill handles fine detail work, slotting, and profiling in tight tolerances. The AlTiN coating improves heat resistance and extends tool life in ferrous and high-temperature alloy cutting. The two-flute geometry promotes chip evacuation in shallow passes, and the 30-degree helix angle balances cutting efficiency with edge strength. Machinists and CNC operators working in tool and die, mold making, or precision component manufacturing install this tool in standard collet or shrink-fit toolholders.

This end mill suits small-feature milling on CNC machining centers and high-speed spindles where tight dimensional control is required. The 0.0394 inch diameter makes it appropriate for micro-slot cutting, engraving, and contour work in steel, stainless steel, cast iron, and titanium alloys. The regular length configuration and 3.00 mm shank diameter fit standard metric collets. Center-cutting capability allows direct plunge entry without a pre-drilled pilot hole, supporting both ramping and plunge-milling tool paths.

Key Features

• Solid carbide micrograin construction for rigidity and wear resistance at small diameters
• AlTiN finish for elevated heat resistance in ferrous and exotic alloy cutting
• Two-flute spiral geometry promotes chip clearance in micro-milling passes
• 30-degree helix angle balances cutting force and edge stability
• Center-cutting design allows direct plunge entry into workpiece material
• Right-hand cut and right-hand flute configuration for standard CNC spindle use

Compatibility

Designed as a standard micro end mill for use in CNC machining centers equipped with metric collets or shrink-fit toolholders accepting a 3.00 mm shank diameter.

Installation Notes

Installation is performed by a machinist or CNC operator following standard toolholding procedures. Ensure spindle and machine power are fully off and locked out before changing tooling. Secure the shank in a clean, undamaged collet to the toolholder manufacturer's specified clamping torque range. At this diameter, runout control is critical — inspect collet condition and measure runout before committing to production cuts.