Accupro 12181661 Square End Mill 0.3543 in 2 Flute Carbide

Product Description

The ACCUPRO 12181661 is a solid carbide square end mill designed for precision milling in demanding metalworking applications. It features a 0.3543-inch (9.00 mm) mill diameter with a 0.5512-inch length of cut and a 2.75-inch overall length. Built from micrograin solid carbide with an AlTiN finish, this stub-length end mill delivers superior wear resistance and heat tolerance at elevated cutting speeds. The 40-degree helix angle and two spiral flutes promote efficient chip evacuation while maintaining a clean, accurate cut. This tool is suited for machinists and tool-and-die professionals running high-performance CNC milling operations.

This end mill is designed for use in stub-length milling applications where rigidity and minimal deflection are priorities. The centercutting geometry allows it to plunge directly into the workpiece, adding versatility in slotting and contouring operations. The right-hand cut and right-hand flute configuration is standard for conventional CNC vertical and horizontal milling setups. It is commonly used on ferrous and non-ferrous metals, hardened steels, and alloys where AlTiN coating provides thermal protection during dry or semi-dry cutting.

Key Features

• Micrograin solid carbide construction for hardness and edge retention
• AlTiN finish provides high-temperature and oxidation resistance
• 40-degree helix angle promotes efficient chip evacuation
• Centercutting design allows direct plunge entry
• Right-hand cut, right-hand flute — standard CNC orientation
• Stub-length body maximizes rigidity and reduces deflection

Compatibility

Designed as an OEM-style replacement or direct-fit tool for CNC milling machines accepting a 10.00 mm (0.3937-inch) shank diameter with standard collet or end mill holder tooling.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Secure the shank in a collet or end mill holder rated for the 10.00 mm shank diameter, observing the shank diameter tolerance of -0.0001 to -0.0004 inches for proper fitment. Ensure the machine spindle is fully stopped and locked before tool changes. Do not exceed the manufacturer-recommended speed and feed parameters for the workpiece material and coating type.