Accupro 12277014 Square End Mill 0.005 in 4 Flute Carbide

Product Description

The ACCUPRO 12277014 is a solid carbide square end mill designed for high-precision milling in metalworking and machining applications. With a 0.005 inch cutting diameter and a 0.007 inch length of cut, this tool is built for micro-milling work where tight tolerances and fine detail are critical. The micrograin carbide construction provides the rigidity and wear resistance needed when cutting hard materials at small scales. Four flutes and a 30-degree right-hand helix promote efficient chip evacuation and a smooth finish. The bright uncoated surface finish makes it well suited for non-ferrous metals and applications where coating buildup is a concern. Qualified machinists and CNC operators are the primary users of this tool.

This end mill is used in precision CNC milling operations where very small cutter diameters are required. Typical applications include engraving, micro-slot milling, and fine detail work on components made from aluminum, brass, copper, and similar non-ferrous materials. The 1/8 inch shank diameter allows it to seat in standard collets found on CNC machining centers and high-speed spindles. With a 1.5 inch overall length and single-end configuration, it fits standard tool holders without extended-reach adapters in most setups.

Key Features

• 0.005 inch cutting diameter with a mill diameter tolerance of +0.0000 / -0.0010 inches for tight dimensional control
• Micrograin solid carbide construction for improved hardness and edge retention at micro scales
• 4-flute, right-hand spiral design with 30-degree helix angle for efficient chip flow
• Centercutting geometry allows plunge entry as well as peripheral milling
• Bright uncoated finish — no coating buildup risk on non-ferrous workpiece materials
• 1/8 inch shank diameter with tolerance of -0.0001 / -0.0003 inches for precise collet engagement

Compatibility

Designed as a standard micro end mill for use in CNC machining centers and high-speed milling spindles accepting a 1/8 inch collet or tool holder.

Installation Notes

Installation and use of this tool should be performed by qualified machinists or CNC operators familiar with high-speed cutting tool handling. Ensure the machine spindle is fully powered down and locked out before inserting or removing the tool from the collet. Confirm collet size matches the 1/8 inch shank before tightening. At this cutter diameter, runout control is critical — inspect toolholding equipment for wear before use and verify runout with a dial indicator when possible.