Accupro 12276787 Square End Mill 0.01 in 4 Flute Carbide

Product Description

The ACCUPRO 12276787 is a solid carbide square end mill designed for precision machining in ferrous and non-ferrous materials. With a 0.01-inch cutting diameter and a 4-flute, right-hand spiral configuration, this tool delivers clean square-shoulder cuts in tight-tolerance applications. The micrograin carbide construction provides the rigidity and edge retention required at this micro-scale diameter. A 30-degree helix angle promotes efficient chip evacuation while reducing cutting forces. The bright, uncoated finish makes it well-suited for non-ferrous materials, plastics, and graphite where coating adhesion or material transfer could be a concern. This end mill is centercutting, allowing plunge entry.

This tool is intended for CNC milling operations requiring very small-diameter cutting, including micro-engraving, slot milling, and fine-detail contouring on precision components. It is commonly used in tool-and-die, mold-making, aerospace, and electronics manufacturing environments. The 1/8-inch shank diameter allows it to seat in standard collet systems. Its regular-length geometry and single-end design are appropriate for standard-depth, high-precision work where extended reach is not required.

Key Features

• 0.01-inch cutting diameter for micro-scale milling operations
• 4-flute spiral design with right-hand cut and right-hand flute direction
• Micrograin solid carbide construction for edge retention at fine diameters
• 30-degree helix angle promotes chip evacuation and reduces cutting forces
• Centercutting geometry allows direct plunge entry
• Bright, uncoated finish suited for non-ferrous metals, plastics, and graphite

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide square end mill for CNC machining centers and milling machines equipped with a collet or tool holder accepting a 1/8-inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the machine spindle is fully powered down and locked out before inserting or removing the tool. Seat the shank fully and concentrically in the collet to the appropriate engagement depth to prevent runout at this micro diameter. At 0.01-inch diameter, excessive overhang, improper collet seating, or side-load from aggressive feeds and speeds can cause immediate tool breakage.