Accupro 12182396 Square End Mill 0.138 in 4 Flute Carbide

Product Description

The ACCUPRO 12182396 is a solid carbide square end mill designed for high-performance milling in ferrous and nonferrous materials. Built from micrograin carbide and coated with AlTiN (aluminum titanium nitride), it handles elevated cutting temperatures and abrasive workpiece materials without sacrificing edge integrity. The 4-flute, right-hand spiral geometry with a 40-degree helix angle promotes efficient chip evacuation and smooth surface finishes. At 0.138 inches in cutting diameter and a 0.4724-inch length of cut, this is a compact tool suited for fine-feature work, slotting, profiling, and contouring in tight geometries. It is a centercutting end mill, enabling plunge entry directly into the workpiece.

This end mill is suited for use in CNC machining centers, vertical mills, and high-speed spindle setups. Its regular length profile and 0.1575-inch shank diameter make it compatible with standard collet systems. Typical applications include die and mold work, aerospace component machining, and precision part production where tight tolerances and consistent tool life are required. The AlTiN coating extends tool life in dry or minimal-lubrication cutting environments at elevated speeds.

Key Features

• Solid micrograin carbide construction for hardness and wear resistance
• AlTiN coating for high-temperature and abrasion resistance
• 40-degree helix angle for efficient chip flow and reduced cutting forces
• Centercutting design allows direct plunge milling
• Right-hand cut and right-hand flute, 4-flute spiral configuration
• Mill diameter tolerance of +0.000 / -0.002 inches for precise fitment

Compatibility

Designed as an OEM-style solid carbide square end mill for use in standard collet and end mill holders accepting a 0.1575-inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Secure the shank fully within the collet or tool holder to the recommended engagement depth and verify runout before cutting. Always confirm spindle speed and feed rate are appropriate for the workpiece material and tool diameter before engaging the cut. Inspect the cutting edges for chips or wear before each use, as micrograin carbide tooling can fracture if run beyond serviceable condition.