Accupro 12277033 Square End Mill 0.024 in 4 Flute Carbide

Product Description

The ACCUPRO 12277033 is a solid carbide square end mill designed for precision milling operations requiring tight tolerances in small-diameter toolpaths. With a 0.024-inch cutting diameter and a 0.036-inch length of cut, this tool is built for micro-milling applications where tool rigidity and dimensional accuracy are critical. The micrograin carbide substrate supports edge retention at higher surface speeds compared to standard carbide grades. The bright, uncoated finish makes it well suited for non-ferrous metals, plastics, and other materials where coating adhesion or heat buildup is a concern. Licensed machinists and CNC toolroom technicians are the primary installers of this tool.

This end mill fits standard CNC machining centers, vertical mills, and toolroom mills equipped with a 0.125-inch (1/8-inch) collet or tool holder. The 1.5-inch overall length and 4-flute, right-hand spiral geometry make it appropriate for finish milling, slotting, and light profiling in small-feature components such as mold cavities, electronic enclosures, and precision mechanical parts. The 30-degree helix angle promotes chip evacuation and surface finish quality on short cuts.

Key Features

• 0.024-inch cutting diameter with a mill diameter tolerance of +0.0000 / -0.0010 inches for close-tolerance work
• Micrograin solid carbide construction for edge retention and rigidity in micro-milling applications
• 4-flute, right-hand spiral flutes with a 30-degree helix angle for efficient chip evacuation
• Center-cutting geometry allows plunge entry into the workpiece
• Bright, uncoated finish suitable for non-ferrous metals, plastics, and soft materials
• Single-end design; shank diameter tolerance of -0.0001 / -0.0003 inches for accurate tool holder fit

Compatibility

Designed for use in CNC machining centers and manual mills with a 1/8-inch (0.125-inch) collet or end mill holder accepting a single-end square carbide tool.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Power down and lock out the spindle before loading or removing the tool from the holder. Seat the shank fully into the collet or holder and torque the retention mechanism per the tool holder manufacturer specifications. Inspect the cutting edges under magnification before use, as micro-diameter carbide tools are susceptible to chipping during handling.